Please shut the government down... please, please, please... while your party controls a mere one half of one of a branch of the government, please shut the government down during an election cycle. Please, please, please do it.
Who cares what MAGA adherents believe... you don't try to get the hard-core, brainwashed followers, they've already committed themselves. However, the undecided voter will see it as the GOP floundering, unable to govern.