Texas Sen. Ted Cruz spoke at day three of Wednesday's Republican National Convention and encourage voters to "vote your conscience in November," but failed to endorse Donald Trump for president.
That was followed by a mix of boos and cheers from the crowd.
"If you love our country and love your children as much as I know that you do, stand and speak and vote your conscience," Cruz said. "Vote for candidates up and down the ticket who you trust to defend our freedom and to be faithful to the Constitution."
After it became clear Cruz was not going to endorse the Republican party's presidential nominee the cameras quickly cut to Trump arriving in the arena.
CNN reported Heidi Cruz was quickly escorted out by security because of threats from the crowd. One Trump supporter shouted "Goldman Sachs," the firm Heidi Cruz previously worked for.
Many on social media responded, suggesting Cruz's move may not be a smart one.