I am greatly honored by the endorsement of Senator Cruz. We have fought the battle and he was a tough and brilliant opponent. I look forward to working with him for many years to come in order to make America great again.
Donald Trump in a statement on Friday after receiving the endorsement of Texas Sen. Ted Cruz.
In July, however, Trump said he would not accept an endorsement from Cruz.
The Democratic and Republican presidential hopefuls found rare common ground Friday in opposing President Obama's decision to veto legislation that would give Sept. 11 victims' families standing to sue the Saudi government over the deadly attacks.
But there was a marked difference in tone as they expressed solidarity with supporters of the bipartisan legislation.
In a statement, Donald Trump blasted Obama's veto as one of the low points of his presidency.
Sen. Ted Cruz announced Friday that he is backing GOP nominee Donald Trump for the presidency, setting aside their bitter rivalry because, he said, Hillary Clinton must be defeated.
“Our country is in crisis. Hillary Clinton is manifestly unfit to be president, and her policies would harm millions of Americans. And Donald Trump is the only thing standing in her way,” Cruz wrote on Facebook.
The move was remarkable given how brutal the contest became between the Republican standard-bearer and the man who came in second in the race for the nomination.
The Facebook post represented a sharp turnaround for the Texas senator, who declined to endorse Trump during a speech at the Republican National Convention.
It also comes after Cruz harshly criticized Trump during the primary, when the New York businessman falsely suggested Cruz's father may have played a role in the assassination of President John F. Kennedy. Cruz called Trump a "pathological liar" in an emotional conversation with reporters.
With the first of three presidential debates around the corner, Hillary Clinton's campaign is urging moderators to quickly correct any lies from Donald Trump.
"This is the role of the moderator ... to call out those lies, and do it in real time," said Jennifer Palmieri, Clinton's communications director, on a Friday conference call with reporters. “To not do that is to give Donald Trump a very unfair advantage.”
The campaign released a long list of Trump statements that were ruled false by fact checkers, such as his claim he opposed the 2003 Iraq war before it started or that Clinton wants to abolish the 2nd Amendment.