President Trump says he will endorse in bitter Senate primary in Texas

FINALLY READY TO ENDORSE IN THE SENATE RACE IN TEXAS AMID. ENDORSE IN THE SENATE RACE IN TEXAS AMID MOMENTUM AMONG. RACE IN TEXAS AMID MOMENTUM AMONG DEMOCRCRATS WHO HAVEN'T. DEMOCRATS WHO HAVEN'T WON THERE IN A LONG TIME. WON THERE IN A LONG TIME. >> Reporter: PRESIDENT. TIME. >> Reporter: PRESIDENT TRUMUMP HOPING TO BRING. >> Reporter: PRESIDENT TRUMP HOPING TO BRBRING IT TO AN END WITH JOHN. TRUMP HOPING TO BRING IT TO AN END WITH JOHN CORNYN FACING KEN. IT TO AN END WITH JOHN CORNYN FACING KEN PAXTON IN A MAY. CORNYN FACING KEN PAXTON IN A MAY RUNOFF, GOP LEADERS. PAXTON IN A MAY RUNOFF, GOP P LEADERS WARNING PRESIDENT. RUNOFF, GOP LEADERS WARNING PRESESIDENT TRUMP THAT. TRUMP THAT SCANDAL-PLAGUED PAXTON COULD COCOST THEM THE. SCANDAL-PLAGUEUED PAXTON COULD COST THEM THE SEAT. COULD COST THEM THE SEAT. >> I HAVE SPOKEN WITH.

SEAT. >> I HAVE SPOKEN WITH THE PRESIDENT TODAY. THE PRESIDENT TODAY ABOUT TEXAS. I HOPEPE THE PRESIDENT. I HOPE THE PRESIDENT WILL ENDORSE JOHN CORNYN. WILL ENDORSE JOHN CORNYN. >> Reporter: PRESIDENT. >> Reporter: PRESIDENT TRUMP SAID WEDNESDAYAY, HE WILL BE ENDORSING. HE WILL BE ENDORSING SOMEONE SOON. ASASKED THE OTHER. ASKED THE OTHER CANDIDATE TO IMMEDIATELELY DROP OUT. CANDIDATE TO IMMEDIATELY DROP OUT OF THE RACE. A. OF THE RACE. >> I REFUSE TOTO ALLOW A FLAWED, SELF-CENTERED. S. FLAWED, SELF-CENTERED AND SHAMELESS CANDIDATE LIKE KEN. AND SHAMELESS CANDIDATE LIKE KEN PAXTON RISK EVEVERYTHING. PAXTON RISK EVERYTHING WE WORKED SO HARD TO BUILD. WE WORKED SO HARD TO BUILD. >> FOR TOO LONG, JOHN. BUILD. >> FOR TOO LONG, JOHN CORNYN HAS TURNED HIS. >> FOR TOO LONG, JOHN CORNYN H HAS TURNED HIS BACK ON US. CORNYN HAS TURNED HIS BACK O ON US. >> Reporter: WHILE. BACK ON US. >> Reporter: WHILE DEMOCRATS SELECTED. >> Repororter: WHILE DEMOCRATS SELECTED STATE REP JAMES. DEMOCRATS SELECTED STATE REP JAMES TALARICO OR JASMINE.

STATE REP JAMES TALARICO OR JASMINE CROCKETT. TALARICO OR JASMINE CROCKETT. TALARICO LEANED ON HIS. CROCKETT. TALARICO LEANED ON HIS CHRISTIAN FAITITH AND. CHRISTIAN FAITH AND POINTED TO HIS ELECTABILITY. POINTED TO HIS ELECTATABILITY HIGHLIGHTING THE VOTER. ELECTABILITY HIGHLIGHTING THE VOTER TURNRNOUT IN THE STATE. HIGHLIGHTING THE VOTER TURNOUT IN THE STATE. >> THE NUMBER OF. >> THE NUMBER OF TEXANS WHO HAVE NEVER VOTED BEFORE BUT. VOTED BEFORE BUT SHOWED UP IN THIS ELECTION IS. SHOWED UP IN THIS ELECECTION IS UNPRECEDENTED. UNPRECEDENTED. >> Reporter: IN THE HOUSUSE, A TOUGH NIGHT. HOUSE, A TOUGH NIGHT FOR INCUMBENTS. DAN CRENENSHAW, THE ONLY. DAN CRENSHAW, THE ONLY HOUSE REPUBLICAN WITHOUT A TRTRUMP. WITHOUT A TRUMP ENDORSEMENT LOST. REPUBLICAN CONGRESSMSMAN. ENDORSEMENT LOST. REPUPUBLICAN CONGRESSMAN TONY GONZALES HEADING. REPUBLICAN CONGRESSMAN TONY GONZALES HEADING TO A RUNOFF. TONY GONZALES HEADING TO A RUNOFF. >> I MADE A MISTAKE.

TO A RUNOFF. >> I MADE A MISTAKE. THERE WAS A LACK OF. >> I MADE A MISTAKE. THERE WAS S A LACK OF FAITH. THERE WAS A LACK OF FAITH. I TAKE FULL. FAITH. I TAKE FULL RESPONSIBILITY FOR. I TAKE F FULL RESPONSIBILITY FOR THOSE ACTIONS. THOSE ACTIONS. >> Reporter: BEFORE THE PRIMARY, SOUOURCES. >> Reporter: BEFORE THE PRIMARY, SOURCES TOLD NBC NEWS THAT. THE PRIMARY, SOURCES TOLD NBC NEWS THAT PRESIDIDENT TRUMP WAS.