Thank you, Ed. Good morning, everyone and thank you for joining Centene's second quarter 2018 earnings call. During the course of this morning's call, we will discuss our second quarter results and provide updates on Centene's markets and products. We will also discuss the recent Fidelis Care acquisition closing and additionally we will provide commentary around the healthcare legislation -- legislative and regulatory environment. Let me begin with Fidelis. We are very pleased to have closed the acquisition effective July 1. I would like to remind you of the strategic and financial benefits of the transaction. Fidelis is a diversified leader in government sponsored programs across the State of New York. Fidelis takes a local approach to providing high quality affordable healthcare to lower income vulnerable populations. New York is the second largest Medicaid managed care state. With Fidelis our New York's health plan, Centene is now a leader in four of the largest Medicaid managed care states. Fidelis is ranked number one in state sponsored programs in New York. It is the fastest growing New York Medicaid and managed long-term care plan, as well as the second fastest growing New York Medicare Advantage plan. It is the only plan that operate Medicaid CHIP, and managed long-term care plans in all 62 counties in the State. Through the incorporation of our data analytics tools, such as Interpreta and RxAdvance, as well as Case Management and Critical programs, we will be able to further build upon the quality of care and enhance the existing capabilities of Fidelis. We expect the transaction to be immediately accretive to GAAP EPS. We anticipate high single-digit percentage accretion to adjusted EPS in the first 12 months following the close, and low to mid teens percentage accretion to adjusted EPS in the second full-year following the close. We also anticipate generating approximately $25 million in pre-tax net synergies in the first 12 months, and $100 million in pre-tax net synergies in year two. These synergies will primarily be attributable to our medical management programs and specialty services. On a run rate basis, we expect Fidelis to add over $11 billion in revenue and over $500 million in adjusted EBITDA, including net synergies. The planning portion of the integration process was completed prior to closing. Our integration team did extensive work to provide a smooth and seamless combination. We were able to hit the ground running, the day of the close and the integration is progressing as expected or better than expected. Next, I will provide an update on the healthcare legislative and regulatory environments. In early July, pursuant to discussions with the Department of Justice, the administration took the position to freeze the risk adjustment payments for 2017 and 2018. This is pending its appeal of the New Mexico Federal Court's decision. The administration along with congressional leadership has made it clear that they are seeking a timely resolution of this matter. We expect that CMS will bring clarity and a fair resolution to the issue. Last week we're pleased to see that CMS had an interim final rule to the OMB that would allow for the resumption of risk adjustment payments. Consistent with our approach to sound public policy, Centene will continue to advocate for the risk adjustment program to continue in the manner for which it was designed. Now onto second quarter 2018 financials. We're pleased to report another strong quarter marked by solid top and bottom line growth. Membership at quarter end was 12.8 million recipients. This represents an increase of approximately 585,000 beneficiaries over the second quarter of 2017. Second quarter revenues increased 19% year-over-year to $14.2 billion. The HBR decreased 60 basis points year-over-year to 85.7%. This was attributable to growth in the marketplace business and the reinstatement of the health insurance space. The adjusted SG&A expense ratio increased 30 basis points year-over-year to 9.6%. This was primarily related to the growth in our marketplace business. We reported adjusted second quarter diluted earnings per share of $1.80 as previewed at our June Investor Day. This excludes the $0.12 charge to reflect a retroactive charge in California's minimum MLR. Consistent with our expectations, adjusted net earnings have developed in a quarterly pattern similar to last year. Jeff will provide further financial details including updated 2018 guidance in his prepared remarks. A quick comment on medical cost. We continue to see as well as anticipate overall stable medical cost trends. This is consistent with our expectations in the low single digits. Moving onto market and product updates. First, we will discuss recent Medicaid activity. During 2018, we began operating under a statewide contract with Illinois Medicaid Managed Care program. Implementation dates vary by region and most of the membership came on during April. This expanded contract significantly increased Centene's footprint in the state. At quarter end, we served approximately 330,000 beneficiaries, representing a sequential increase of approximately 120,000 members. Additionally, Centene will be the sole plan serving the state's foster care program. This contract is expected to commence in the fourth quarter of 2018. This membership will be incremental to the 330,000 beneficiaries I just noted. Florid. In May, Centene successfully re-procured it's contracts, providing physical and behavioral healthcare services to Florida statewide Medicaid Managed Care program. We have expanded our presence under the new contract and we will now be operating statewide providing comprehensive MMA and long-term care services to all 11 regions in the state. Additionally, Centene will remain as Florida's sole child welfare specialty plan in all 11 regions. The new contract is expected to commence December 1, 2018 to run through September of 2023. Iowa. Also in May, Centene was awarded a statewide contract for Iowa's Medicaid Managed Care program. We are pleased to have won this contract as it was a reprocurement of an existing contract and Centene was not an incumbent. The Iowa Health claims program provides integrated Medicaid managed care coverage, including long-term care and behavioral health to over 600,000 beneficiaries in the state. This contract is expected to commence on July 1, 2019. Washington. As part of the state's reprocurement process, Centene was selected to serve Medicaid beneficiaries under the Apple Health Managed Care program in four regional service areas. We will be serving a total of five RSAs once it is fully implemented. This new program now initiates physical and behavioral health. The contract will be phased in two stages. The first commencing on January 1, 2019, and the second on January 1, 2020. Centene continues to serve all regions to our foster care program in Washington. Kansas. In June, Centene successfully re-procured its contract to serve Medicaid beneficiaries under the Can Care program statewide. This new contract is expected to begin January 1, 2019. Next, Centurion, Arizona. In May, Centurion was awarded a contract to provide comprehensive healthcare services to detainees of adult and juvenile detention facilities in Pima County, Arizona that commenced on July 1. We are providing a wide array of medical dental behavioral health services to the county's daily population of approximately 1,900 detainees. Additionally, Centene renewed correctional contracts in Florida, New Hampshire and Tennessee. These new contracts all commenced on July 1. Now Health Net Federal Services. In July, Health Net Federal Services was awarded the next generation Military & Family Life Counseling Program contract. Under this contract, we will deploy license behavioral health counselors on assignments throughout the United States, U.S territories, and countries where U.S military is deployed. The contract term is up to 10 years including multiple 1-year option periods/ On the Medicare. At June 30, we served approximately 344,000 Medicare and MMP beneficiaries. This represents a year-over-year increase of more than 16,000 members. With the close of the Fidelis acquisition, we're now assuming Medicare Advantage members in New York. We remain focused on building a successful Medicare business over the long-term. We expect this business to be a significant driver of our annual growth rate. Next, Health Insurance marketplace. The marketplace business continue to perform well in the second quarter, consistent with our expectations. At June 30, we served over 1.5 million exchange members, representing sequential decline of approximately 100,000 beneficiaries. This is due to normal attrition and is in line with our expectations. Including Fidelis, we now serve and offer exchange products in 16 states. Shifting gears to our rate outlook. We continue to expect a composite Medicaid rate adjustment of an increase of approximately 1% in 2018. In conclusion, our strong second quarter results are continued evidence of Centene's financial strength and operational capabilities. The acquisition of Fidelis further enhances our scale and position as a diversified healthcare enterprise, a leader in government sponsored healthcare. Our pipeline of growth opportunities remains robust. We are positioning Centene for the future by continuing to invest in systems, people and other capabilities. This will enable us to sustain our growth as well as continue to expand our margins. We thank you for your continued interest in Centene. And I will now turn the call over to Jeff.