Will Trump keep Steve Bannon, or will he fire him and replace him with someone equally nauseating? Will Trump keep Sean Spicer, or will he fire him and replace him with someone equally nauseating? Will the Republicans keep Paul Ryan, or will they fire him and replace him with someone equally nauseating?
They can play this game forever, and they will. Every time they kick someone under the train, the ever-cooperative mainstream press will have a thousand opportunities to write stories about how now, everything has changed, and it is our duty to love and obey Trump, and give Congressional Republicans everything their masters want. This, apparently, is how you create a successful Republican government.
If success is defined Mugabe style as staying in power for years, in a country that you drive further into ruin every single day you are in control.