What's the Difference Between a Presidential and a Prime Ministerial System?

In the u k, of course, we don't have a presidential system. So basically, when people vote in an election, they don't vote for the leader. But it's a very good point you're making, because johnson keeps on saying he's had a mandate from the last election. And er, all this stuff about heis the person who won the election, er, is not actually true. A lot of candidates won their seats. Allright, that's what happens.