Share U.S. Republicans have spent years complaining about how Congress spent less than a year reviewing Obamacare before voting to overhaul one-sixth of the American economy. But that's a lifetime compared to how long the GOP waited over the weekend before passing a tax bill that could overhaul the entire economy: About eight hours. Senate Republicans dropped the nearly-500 page tax bill, which is the largest change to the tax system in decades, only hours before passing it on a party line vote. The vote happened even though the bill appeared to be incomplete, with entire passages crossed out by hand or written in the margins.  Keep up with this story and more by subscribing now By comparison, the text for the Affordable Care Act was available for review for 35 weeks, debated for 169 hours and went through at least 161 GOP amendments in the Senate before passing.  Sen. Lamar Alexander was critical of how Democrats handled the Obamacare proposal, saying they were "ramming through a partisan bill," though he voted for the Republican tax plan, which was only available for review for about seven hours and passed 51-49 on a strictly party-line vote. Photo by Zach Gibson/Getty Images Ever since then, Republicans have insisted that wasn't enough time. In a 2009 interview with Fox News, Senator Lamar Alexander (R-Tenn.) said his Democratic colleagues pulled a move akin to "going to war without Congressional approval." Democrats were “thumbing their nose at the American people by ramming through a partisan bill,” he said. Mike Pence, who was then serving a governor of Indiana, also piled on. “It’s simply wrong for legislation that’ll affect 100 percent of the American people to be negotiated behind closed doors,” he tweeted in January 2010. Senate Majority Leader Mitch McConnell complained about Democrats "working behind the scenes on a plan aimed at jamming this massive health spending bill through Congress against the clear wishes of an unsuspecting public." By that point, nascent iterations of the health care bill had already been discussed and approved in the Senate health and finance committees. All told, Obamacare underwent 13 days — and about 60