She will succeed Democrat Ed Markey, who vacated the House seat earlier this year.
Stockman filed for Cornyn's seat just minutes before the filing deadline.
Their nod is the latest example of groups backing establishment Republicans facing primaries.
The president suffers an all-time low approval rating; Dems trail Republicans in elections.
New York Gov. Andrew Cuomo (D) said Tuesday “We just have too much government.”
Cuomo spoke to reporters about his tax commission’s new report that recommended local governments share or consolidate services in the coming years....
Ben Affleck has become “disillusioned” with politics.
Holding the event on the island will put the issue of immigration front and center.
Rep. Mike Honda’s (D-Calif.) reelection campaign on Monday received the endorsement of the Sierra Club, an environmental group.
Honda is facing a Democratic primary against former President Obama administration official Ro Khanna (D), whom Honda will likely face in the general election as well because of California election rules.
Milton Wolf, a conservative primary challenger to Sen. Pat Roberts (R-Kan.), picked up the endorsement of a prominent national conservative group on Tuesday.