A runoff election occurs when no candidate in a race receives more than 50 percent of the vote. The top two vote-getters in each race advance to a runoff. After the March 6 primary elections, Hays County residents will see at least one runoff in the House District 45 race. In the race to replace outgoing State Rep. Jason Isaac, R-Dripping Springs, Ken Strange becomes the Republican nominee, and Democrats Rebecca Bell-Metereau and Erin Zwiener will face off in a runoff May 22. The 45th district spans Hays County and includes the cities of San Marcos, Buda, Kyle, Dripping Springs and Wimberley. Bell-Metereau received 45.40 percent of the vote, and Zwiener received 30.66 percent of the vote. The third-place candidate, Les Carnes, received 23.92 percent of the vote. If you did not vote in the March 6 primary elections, you can still vote in the May 22 primary runoff elections. If you voted in the March 6 primary elections, you must vote with the same party in the May 22 runoff elections. Other Central Texas primary election runoffs include the U.S. House District 21 race, in which Republican Chip Roy will face off against Matt McCall on May 22. On the Democratic side, a runoff will also be held for candidates Joseph Kopser and Mary Street Wilson, neither of whom received more than 50 percent of the vote. Early voting for the May 22 primary runoff election runs from May 14-18. The last day to register to vote in that election is April 23.