Sen. Kyrsten Sinema (D-Ariz.) on Wednesday defended the filibuster as an essential tool and confirmed she will not vote to abolish it. The filibuster “is a tool that protects the democracy of our nation, rather than allowing our country to ricochet wildly every two to four years back and forth between policies,” Sinema told reporters in Arizona after touring the border with Sen. John Cornyn (D-Texas). Some leftist activists and media members have pressured Sinema and other Democrats to end the filibuster, asserting President Joe Biden cannot accomplish his agenda if Republicans keep blocking many of his legislative priorities. “To those who say that we must make a choice between the filibuster and ‘X,’ I say, this is a false choice,” Sinema told reporters. “The reality is that when you have a system that is not working effectively … the way to fix that is to fix your behavior, not …