Christian Slater Calls Trump an 'Ass****' for Spending $300k on Putin Summit

Christian Slater's throwing a jab at President Trump for the summit with Vladimir Putin, but not for his words ... this one's all about spending $300k on the summit.

We got the "Mr. Robot" star in D.C. Tuesday and he quickly shared his thoughts on the story we broke -- the administration's six-figure tab at the Helsinki summit. For the record, the full amount was $302,124.62.