Neither party can.
I disagree. The MAGA movement (formerly known as the Republican Party) has been very good at pushing its nativist, fearmongering, crisis-of-the-week agenda. White House, Congress, etc. They have a bullhorn in FoxNews to keep the faithful full of unending bile.
Democrats can't seem to govern, nor keep its fringes from going off the rails.
Maine, Michigan were ripe for the picking in the Senate. I predict a loss for Democrats. Ineptitude.