- Donald Trump faces lawsuits from Trump University, the online real estate courses the bore his name
- Republicans Marco Rubio and Ted Cruz both raised the issue at the GOP debate in Houston
- Trump could be called to the witness stand later this year
Washington (CNN)Donald Trump likes to talk a lot about winning, but it is one of his failed ventures that brought out daggers from his opponents in Thursday night's Republican presidential debate. Florida Senator Marco Rubio took the first stab at trying to label Trump's failed "Trump University" as a fake.