There have been a lot of negative ads flying around in the Republican presidential campaign, but none of them from Donald Trump — until now. On Friday morning, the Trump campaign will unveil its first attack ad of the race, targeted at closest GOP rival Ted Cruz on the issue of immigration.

The 60-second ad, entitled “Clear Difference,” has no narration. Instead, it is built on clips of what was perhaps Cruz’s weakest moment in the campaign so far — his halting and defensive interview last month with Fox News anchor Bret Baier concerning Cruz’s efforts to amend the Gang of Eight comprehensive immigration reform bill back in 2013.