McCaul first ran for the U.S. House of Representatives in 2004 and won a crowded Republican primary in the newly-created 10th District. The district, which included part of Austin, the western part of Harris County and several rural counties in between, was thought to be so heavily Republican that no Democratic candidate even filed, effectively handing him the seat. In 2006 he defeated Democratic candidate Ted Ankrum and former Libertarian presidential candidate Michael Badnarik with 55% of the vote. McCaul won re-election again in 2008, against Democratic candidate Larry Joe Doherty and Libertarian candidate Matt Finkel by a 54 to 43 percent margin. Four years later, he was re-elected to a fourth term with 76% of the vote against Democratic candidate Ted Ankrum and Libertarian candidate Jeremiah "JP" Perkins. McCaul won a seventh term in the House in the general election held on November 8, 2016. With 179,221 votes, he defeated Democrat Tawana W. Cadien, who polled 120,170. Libertarian Bill Kelsey held another 13,209 votes. In the general election held on November 6, 2018, McCaul won an eighth term in the House with 157,166 votes. He defeated Democrat Mike Siegel, who polled 144,034 and Libertarian Mike Ryan, who got 6,627 votes. It was the closest race of McCaul's career.
Legislation and voting record
On December 11, 2013, McCaul introduced the National Cybersecurity and Critical Infrastructure Protection Act of 2013, a bill that would amend the Homeland Security Act of 2002 to require the Secretary of the Department of Homeland Security to conduct cybersecurity activities on behalf of the federal government and would codify the role of DHS in preventing and responding to cybersecurity incidents involving the Information Technology systems of federal civilian agencies and critical infrastructure in the United States. McCaul said that the bill was "an important step toward addressing the cyber threat." According to McCaul, the bill "establishes a true partnership between DHS and the private sector to ensure the distribution of real-time cyber threat information in order to secure our nation in cyberspace without burdensome mandates or regulations." In a December 2, 2016 Fox News op-ed, McCaul declared his intention to support legislation, in line with president-elect Donald Trump's proposals, to build a wall along the Mexico–United States border, to secure the border, and have Mexico and other Latin American countries pay for these proposals. In April 2019, McCaul spoke out against a resolution that would end US involvement in the Yemeni Civil War. Recognizing the humanitarian crisis in Yemen, McCaul explained his belief that approving the resolution would "disrupt US security cooperation agreements with more than 100 countries." On December 18, 2019, McCaul voted against both articles of impeachment against Trump. Of the 195 Republicans who voted, all voted against both impeachment articles.
Committee assignments
In December 2016, the House Republican Conference voted to appoint McCaul for a third term as the chairman of the HouseCommittee on Homeland Security Committee. The selection follows McCaul's recent publication of "A National Strategy to Win the War Against Islamist Terror", a compilation of more than 100 counterterrorism strategies and recommendations. McCaul says his approach to counterterrorism will aid in integrating the nation's homeland security policies into the digital age through the implementation of detailed screening of foreign visitors, including immigrants and refugees, by utilizing the latest technologies and intelligence.
United States Congressional International Conservation Caucus
Personal life
McCaul is married to Linda Mays McCaul, the daughter of Clear Channel Communications chairman Lowry Mays and sister of its CEO Mark Mays. In 2011, Roll Call named McCaul as one of the wealthiest members of the United States Congress, surpassing then U.S. Senator John Kerry. His net worth was estimated at $294 million, which is approximately 300 percent higher than it was in the previous year. In 2004, the same publication estimated his net worth at just $12 million: His wealth increase was due to large monetary transfers from his wife's family. He and his family live in West Lake Hills, Texas, a wealthy suburb of Austin, Texas. McCaul is frequently named as one of the top-ten users of household water in the Austin area, and was the No. 1 consumer of household water in the city for 2017.