Republicans are aces when it comes to taking obscure rules and using them to kick democracy where it hurts. Before Trump dropped into the White House between rounds of golf at Mar-a-Lago, the Congressional Review Act had been used just a single time. George W. Bush pulled it out in 2001 to kill an ergonomics rule at the Department of Labor (So if your back is hurting, you know who to thank). On three other occasions, Republicans in Congress brought a CRA bill to Bush over some Clinton-era rule, but Bush vetoed those bills.

Under President Obama, not a single CRA bill was implemented. That’s because during his first term Republicans in Congress were all in favor of the numerous rules the Bush administration dropped to remove safety rules, weaken environmental law, and crank up “security.” And later when they pulled it out several times to attack Obama’s own bills, the president quashed those attempts.

However, with Trump ready to sign anything that drops in front of him, Congress has been on a CRA tear. In the first 11 weeks of Trump in the White House, Congress matched him week-for-week, passing 11 bills under the CRA that repeal rule changes made by the Obama administration.

In fact, those 11 CRA resolutions are the only substantive bills Trump has signed so far; it’s quite possible that the CRA will produce the entire legislative legacy of his first 100 days.

Trump’s first 100 days may do nothing at all but erase actions taken by the Obama administration. Which suits Republicans right down to the toxic, soot-covered ground.

What kind of things have they gone after? It’s a good list of Republican priorities.