Houston, Texas

Austin Leadership

Tony Essalih joined Cornerstone in 2011. He is a 12-year veteran of Capitol Hill and comes to Cornerstone from the office of Congressman John Culberson (R-TX). Tony served Congressman Culberson for 10 years, the last five as his Chief of Staff. Prior to that position, Tony spent time as a Legislative Assistant, Legislative Director, Communications Director, and Deputy Chief of Staff to the congressman. He worked in Washington, DC for eight years before moving to Texas in 2007.

Martin Hubert brings a wealth of state government experience to the clients of Cornerstone Government Affairs. From his early career as Chief Counsel to the Senate Natural Resources Committee to his gubernatorial appointment as a Commissioner of the Texas Commission on Environmental Quality to his eight years as the Deputy Comptroller of Texas, Hubert has managed thousands of employees and millions of taxpayer dollars under both Democrat and Republican administrations. As the final General Counsel to legendary Lt. Governor Bob Bullock, Martin learned the mastery of government relations from some of the most influential leaders in Texas history. His knowledge of agriculture stems from generations of the Hubert family’s cow/calf and farming operations in South Texas and eight years as the Deputy Commissioner of the Texas Department of Agriculture. Martin offers a unique combination of legal, natural resources, tax policy and state government procedural expertise.

Tyler Nelson, former chief of staff to Congressman Pete Olson (R-TX), joined the firm as Vice President in June of 2016.  During his seven year tenure with Congressman Olson, Tyler served in various roles including Campaign Manager, District Director and Deputy Chief of Staff.  In his most recent role as Chief of Staff, Tyler managed the Congressman’s Washington and Texas operations including all political, legislative and communications strategies for the Congressman.  Given the Congressman’s role on the Energy & Commerce Committee and the Energy & Power subcommittee, Tyler helped develop all facets of the Congressman’s legislative agenda. Prior to working with Representative Olson, Tyler was a consultant with Hitachi Consulting in Houston, Texas.  He was also a legislative aide with the Houston City Council.

Tim Schauer joined Cornerstone in 2011 as a co-lead of the firm’s flagship Texas office in Houston. He has more than 20 years of government relations experience working in both Austin and Washington, DC. Tim has advocated for a broad range of policy issues including health care, health insurance, public health, tort reform, education, water financing and craft beer. Tim has played a pivotal role in guiding the advocacy efforts for Community Health Choice, Nexus Health System, Memorial Hermann Healthcare System, the Texas Association of Community Based Health Plans and Open the Taps. In addition to his direct advocacy efforts, Tim specializes in public policy development with community organizations, as exemplified by his formative work with Healthy Living Matters - a Houston collaborative focused on solving childhood obesity. Tim’s collaborative style and upbeat leadership skills were recognized when he was selected to chair the Greater Houston Partnership’s Federal Relations Committee for three consecutive years.