Democratic Sen. Kyrsten Sinema of Arizona recently doubled down on her objections to eliminating the Senate filibuster rule. A Washington Post report on Monday pointed out that many Senate Democrats believe that Minority Leader Mitch McConnell (R-KY) will continue a pattern of obstruction if the filibuster rule is left in place. “There is absolutely no reason to give Senator McConnell months and months to prove what we absolutely know — that he is going to continue his gridlock and dysfunction from the minority," Fix Our Senate spokesperson Eli Zupnick told the paper. Democrats have a slim majority, meaning that even one defection could derail the effort to overturn the filibuster rule. Sen.