“Putting in laws” requires that Congress (Republicans aren’t about to get on board here) get things passed. Things like ‘expanding the court’ are what really would drive Republican voters to the polls, which is why they haven’t done that. The President has less power than you seem to be giving them credit for. Do you think that Biden should just go slap a pair of cuffs on Trump? Trump would win in a landslide if that happened. The Democrats have certainly been asleep at the wheel for a while, and it’s going to take a long time to get P25 out of the government for sure. There are no quick fixes.