They want the votes overturned in Arizona, Michigan, Georgia, Wisconsin, Pennsylvania, and Nevada. Why? Because those states voted for a Democrat to be president. That has to be the reason, because no evidence exists of fraudulent voting or an election rigging (as Trump has repeatedly lied about).
Republicans now seem to think they have a right to rule, regardless of what the voters want. They don't want Democratic votes to even be counted -- and they have gone to great lengths to suppress those votes.
Here's how Jamelle Bouie puts it in a New York Times column:
Of the many stories to tell about American politics since the end of the Cold War, one of growing significance is how the Republican Party came to believe in its singular legitimacy as a political actor. Whether it’s a hangover from the heady days of the Reagan revolution (when conservatives could claim ideological hegemony) or something downstream of America’s reactionary traditions, it’s a belief that now dominates conservative politics and has placed much of the Republican Party in opposition to republican government itself.
It’s a story of escalation, from the relentless obstruction of the Gingrich era to the effort to impeach Bill Clinton to the attempt to nullify the presidency of Barack Obama and on to the struggle, however doomed, to keep Joe Biden from ever sitting in the White House as president. It also goes beyond national politics. In 2016, after a Democrat, Roy Cooper, defeated the Republican incumbent Pat McCrory for the governorship of North Carolina, the state’s Republican legislature promptly stripped the office of power and authority. Wisconsin Republicans did the same in 2018 after Tony Evers unseated Scott Walker in his bid for a third term. And Michigan Republicans took similar steps against another Democrat, Gretchen Whitmer, after her successful race for the governor’s mansion.
Considered in the context of a 30-year assault on the legitimacy of Democratic leaders and Democratic constituencies (of which Republican-led voter suppression is an important part), the present attempt to disrupt and derail the certification of electoral votes is but the next step, in which Republicans say, outright, that a Democrat has no right to hold power and try to make that reality. The next Democrat to win the White House — whether it’s Biden getting re-elected or someone else winning for the first time — will almost certainly face the same flood of accusations, challenges and lawsuits, on the same false grounds of “fraud.”
It’s worth emphasizing the bad faith and dishonesty on display here. At least 140 House Republicans say that they will vote againstcounting certain electoral votes on Wednesday. Among them are newly seated lawmakers in Georgia and Pennsylvania, two states whose votes are in contention. But the logic of their objection applies to them as well as Biden. If his state victories are potentially illegitimate, then so are theirs. Or take the charge, from Ted Cruz and 10 other Senate Republicans, that multiple key swing states changed (or even violated) their election laws in contravention of the Constitution. If it’s true for those cases, then it’s also true of Texas, where Gov. Greg Abbott, a Republican, unilaterally expanded voting, however meagerly. And yet there’s no drive to cancel those results.
The issue for Republicans is not election integrity, it’s the fact that Democratic votes count at all.