And yet, they control the house of representatives and are expected to pick up seats in both houses in November.
(My explanation: The GOP is not a conservative party. If you look at the GOP's agenda, it's solely to align the country's policies in favor of the very wealthy and businesses. However, those interests alone don't create enough votes to control the country, so they need to get someone else on board. That's the reason why they favor social conservative issues. Conservatives will reliably support Republicans no matter how many economic decisions they make counter to their interests.)