State Sen. Roland Gutierrez, a San Antonio Democrat who’s emerged as one of Texas’ most outspoken gun-reform advocates, confirmed he’s running to unseat U.S. Sen. Ted Cruz, R-Texas. Speculation has swirled since April that Gutierrez might run against Cruz. On Monday, he made his campaign official in a four-minute video that begins in Uvalde, a city in his district where 21 people lost their lives in one of the nation’s worst school shootings.