Rep. Jasmine Crockett, D-Texas, launched her run for Senate on Monday, shaking up the Democratic primary just before the state's filing deadline.

Crockett joins the race to take on GOP Sen. John Cornyn, who is facing multiple primary challengers himself. The two-term congresswoman’s decision also comes as her Dallas-based House seat was redrawn in a GOP-led redistricting effort.

"There are a lot of people that said, 'You gotta stay in the House. We need our voice. We need you there,'" Crockett told her supporters as she launched her campaign Monday night. "And I understand. But what we need is a bigger voice."

Crockett, with a slogan of "Texas Tough," pitched herself as the Democrat best-positioned to drive out turnout and appeal to disillusioned voters, saying she can build "a strong m

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