Patrick Svitek, Texas Tribune

Gov. Greg Abbott has spent the past seven months unveiling endorsements for Texas House Republicans and other GOP candidates for the lower chamber — and now he is about to hit the road for them.

Backed by massive donations, the Republican super PAC Engage Texas is assembling a behemoth of an organization as it rushes to register new voters ahead of a crucial 2020 election.

Several former prominent supporters of Julián Castro in his home state are endorsing Joe Biden for president now that the Texan is no longer running — and a day after he threw his support to Biden rival Elizabeth Warren.

Gov. Greg Abbott rescinded his endorsement of state Rep. Rick Miller on Tuesday after the Sugar Land Republican said he was facing primary challengers because they are “Asian.”

Democratic presidential candidate Elizabeth Warren is expanding her staff in Texas, giving her easily the biggest organization devoted to the state of any primary campaign.

Democratic presidential candidate Joe Biden is ramping up his campaign in Texas, naming a state director while adding another endorsement from a state senator.

The former vice president’s Texas state director will be Dallas-based Democratic strategist Jane Hamilton, the Biden campaign told The Texas Tribune. At the same time, the campaign announced it has received the endorsement of state Sen. Beverly Powell of Burleson.

Democratic presidential candidate Julián Castro is threatening to end his campaign if he does not raise $800,000 by the end of the month, saying he is in "dire need of financial resources to keep going."

Some of the newest entrants in the crowded U.S. Senate Democratic primary are disclosing their first major fundraising figures as the Republican incumbent, John Cornyn, continues to stretch his financial advantage.

The candidates have until the end of Tuesday to report their numbers to the Federal Election Commission for the last three months.

Democratic presidential hopeful Elizabeth Warren has hired a Texas state director, the first such move by a non-Texan candidate in the primary.

U.S. Sen. John Cornyn, R-Texas, has almost $11 million saved up for his reelection campaign after he raised close to $3.2 million in the third quarter, his campaign told The Texas Tribune on Monday.

Former U.S. Rep. Pete Sessions formally launched his campaign Thursday to replace retiring U.S. Rep. Bill Flores, R-Bryan, opting against running again in his old Dallas-based district and pressing forward in Flores' 17th District despite some local Republican unease.

President Donald Trump is heading to Dallas next month for a reelection campaign rally.

The event will be Oct. 17 at the American Airlines Center, his campaign announced Monday evening. The start time is 7 p.m.

U.S. Rep. Mac Thornberry, R-Clarendon, announced Monday that he will not seek reelection in 2020, making him the sixth GOP congressman from Texas to say he's retiring in recent weeks.