Remember the 2018 campaign strategy for Republicans was to focus on the scary migrant caravans heading towards the border? I remember Fox News constantly covering it and a constant part of Trump's speeches campaigning for various Republicans. Yet Republicans had all three chambers, and Trump has the power of executive order.
But if Democrats gain control of a chamber or both of Congress, Republicans can't stop the caravans, which they already had the power at the moment to pass laws and even get rid of the filibuster?
"Never confuse a single defeat with a final defeat." - F. Scott Fitzgerald