I've received a couple of Democrat (United States) missives protesting that Republicans in the Senate are acting contrary to the US Constitution if they don't assent to POTUS' choice for new SCOTUS judge. This, despite the fact that the Senate has a Constitutional obligation to decide whether to give assent (as per Article 2 of the US Constitution). It is obligatory on POTUS to find a candidate whom both POTUS and LOTUS can both support. Failing to do that is dereliction of duties. To lay the blame solely on Republicans (and I assure you that I am not a Republican) is yet more political grandstanding.