Maybe it takes an Illinois Republican (see: Endangered Species List) to say it, so I will:
The U.S. Senate has no Constitutional authority to refuse to seat a duly appointed Senator, and that’s what Roland Burris (see: Democrat Hack) is. Blago is the Governor, invested with the authority, by Amendment 17 and Illinois Statute, to fill the Senate vacancy, which he did by selecting Burris. The fact that Blago is charged with crimes and facing impeachment doesn’t alter his authority unless and until he is removed from office.
The U.S. Senate is empowered by Article 1 to judge the qualifications of its members,* not to arbitrarily invent the qualifications. The qualifications are specified in the U.S. Constitution, so the U.S. Senate has the power to determine whether Burris is 30+ years old, a US Citizen for the past nine years, and a resident of the State of Illinois. As far as I know, no one is claiming that Burris is actually a resident of Kenya, so Harry Reid and Co. are obliged to swear him in.
While it is tempting to wish for a protracted Democrat self-destruct fest, Conservatives value the integrity of our Constitutional Republic above tactical political advantage. That’s one of the things that differentiates us from the Competition (see: Democrat Party), so this would be a good moment for some Conservative Republicans to stand up for the Constitution, with the ancillary benefit that Harry Reid et al. are currently caught off-base, standing, as it were, in the Senate Chamber Door, in the great Democrat tradition of George Wallace, to exclude a Black man from their domain. The moment of opportunity is passing quickly as Senate Dems will shortly fall into line for Obama, who just wants the matter to go away – yesterday -- and Republican skittishness will probably carry the day, meaning no GOP elected officials will leave an imprint on the public discourse in defense of the Constitution; notwithstanding that all Senators raise their right hand and swear to defend it.
*the U.S. Senate is also empowered by Article 1 Section 5 to judge the election results of its members, and the Democrat majority will no doubt do so with cynical dereliction in the case of the Minnesota election, by seating Al Franken. So much for supposed Democrat angst over stolen elections, eh?