With a 218 to 213 majority in the House, Republicans cannot afford to lose winnable elections – let alone slam dunks.

Here’s a quick explanation of why Florida is having special elections this week, who the candidates are in each race and how, where and when to vote.

Republicans are expected to win the two red districts, but political watchers will be eyeing turnout and margins as indicators of voter sentiment about Trump’s second term and the GOP’s future electoral prospects.