A group of activists, including David Hogg, who survived the Parkland, Florida, high school massacre, have raised nearly $10,000 for a mobile billboard aimed at discrediting President Donald Trump's support for Republican Sen. Ted Cruz's re-election campaign.
On Friday, Trump tweeted his full support for Cruz and promised to endorse him during an October stop at the "biggest stadium in Texas we can find."
Also, on Friday, Hogg retweeted one of Trump's tweets from the GOP presidential primary and asked if someone in Texas could get it put on a billboard.
Hogg's rally cry led to a concerted effort between USA Lantinx's Antonio Arellano and Claude Taylor, the chair of Mad Dog PAC, to create a GoFundMe campaign.
Then the trio started tweeting the fundraiser using #TrumpTweetTruck. In less than 24 hours, the campaign pulled in more than the needed $6,000. It stopped accepting donations after hitting $9,760.
The billboard, which will feature some of the most critical tweets Trump made about Cruz during the Republican presidential primary in 2016, is expected to begin traveling in Texas Sept. 13, according to Taylor.
The Senate race between Cruz and Democratic candidate Beto O'Rourke has tightened in recent weeks, according to some polls.
Which Trump tweets are they planning to use?
Hogg shared on social media some tweets that could end up on the mobile billboard.
"Ted Cruz is falling in the polls. He is nervous. People are worried about his place of birth and his failure to report his loans from banks," Trump tweeted Jan. 18, 2016.
"How can Ted Cruz be an Evangelical Christian when lies so much and is so dishonest," Trump wrote Feb. 12, 2016.
"Why would Texans vote for 'liar' Ted Cruz when he was born in Canada, lived there for 4 years-and remained a Canadian citizen until recently," Trump wrote Feb. 24, 2016.
It's not unusual for same party candidates to take nasty swipes at each other's credibility when they're vying for their party's nomination. Then, once the party chooses its candidate, the others put their support behind the one running for election.
That's what happened during the 2016 GOP presidential primary between Cruz and Trump, but now the president's tweets will be used against the senator he has fully endorsed.
Trump and Cruz had a contentious relationship, but they appear to have put their differences aside.