A series of high-stakes presidential debates began Tuesday, Sept. 29, between President Donald Trump and former Vice President Joe Biden.

The first debate, at Case Western Reserve University, in Cleveland, marked the first time the two candidates directly faced each other in a presidential race that’s been altered by the pandemic.

Since then, Trump has tested positive for the coronavirus and the next planned debate, scheduled for Oct. 15, was canceled after Trump said he would not participate in a virtual debate format.

Still, the second — and now final — debate is scheduled to take place Thursday, Oct. 22, starting at 9 p.m.

Here’s what you need to know about all the debates: