Would be a nice move

Senior Democratic aides told Politico that if Trump were to fire Mueller and other members of the Justice Department's leadership in a scenario similar to Nixon's Saturday Night Massacre, Democrats would respond by inviting Mueller to testify before the House in a televised hearing.

"I think you could expect Democrats to take pieces of what they shut down and expose it publicly,” a senior aide familiar with House Minority Leader Nancy Pelosi's (D-Calif.) thinking told Politico.

  The Hill

...but hey, do what you want...you will anyway.