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This is true.  They just usually don't touch some things until it's an election year, the other party is winning and they need a boost in poll numbers, or they are actively forced to.
Politicians job is to keep their house/senate seat.  And they will ABSOLUTELY delay, accelerate, ignore, or even outright manipulate things against their people's benefit for that seatwarming.
it's actually possible to do more than one thing at a time