In a recent Pew Poll, 80 percent of respondents said the president and Republican leaders were not working together to address important issues — and, by a two-to-one margin, said the G.O.P. was more to blame for gridlock.

Despite their minority status in the Senate, the people on the right side of the aisle have managed to muck up the works. Their obstructionist repertoire is so extensive that you almost need a field guide to their delaying techniques.

Here’s a start on that guide.

Filibuster Abuse: The practice of halting Senate deliberation is an old one, practiced by both parties, but the current Republican caucus has taken it to new heights. They have filibustered an unprecedented number of President Obama’s nominees. The District Court for Washington, D.C., perhaps the most important appeals court in the land, has four of its 11 seats vacant. The last time the Senate confirmed a judge was in 2006. The Republicans have filibustered all of Mr. Obama’s nominees because Republicans simply don’t want him to appoint any judges to a currently conservative court, which rules on appeals involving federal regulatory agencies, and which has exclusive jurisdiction over national security matters.



Boycotting: Also known as taking your marbles and going home, the most recent example came on Thursday, when Republicans refused to attend a meeting of the Environment and Public Works Committee, thereby blocking the nomination of Gina McCarthy as head of the Environmental Protection Agency. They claimed they were not completely satisfied with her answers to the more than 1,000 questions they dumped on her in the confirmation process. In addition to stymying Mr. Obama, holding up her nomination has the great virtue of hamstringing the E.P.A., which the right thinks shouldn’t exist in the first place. And that leads us to the next G.O.P. tactic:

Denial of services: Some government agencies require a certain number of members, or a permanent chief, to operate. If the Republicans don’t like those agencies, they simply make sure those positions never get filled. For instance, the National Labor Relations Board, which Republicans loathe because it protects workers, requires a quorum to take action. So the Republicans refused to confirm Mr. Obama’s nominees. Then they held fake pro-forma sessions during their vacations to try to prevent him from making recess appointments. He did that anyway and the Republican-packed D.C. appeals court (see above) ruled that the appointments were illegitimate — which could invalidate scores of decisions. The Republicans are playing this same trick with the Federal Consumer Financial Protection Bureau, which was created in response to the wildly reckless actions that led to the financial collapse of 2008.

Investigate again and again and again: When Darrell Issa, took over the House Committee on Oversight and Government Reform after the G.O.P. won the House majority in 2010, he said he wanted to hold “seven hearings a week times 40 weeks.” His supposed reason was that Mr. Obama is “corrupt.” That’s a frequent Republican talking point, but it’s so obviously ridiculous that I wonder if they actually believe it. In any case, the real reason is that endless “investigative” hearings cause trouble and distract administration officials from their actual jobs. The hearings on Benghazi, for example, have revealed none of the impeachable offenses that Republicans claimed would come to light. They have kept Congress and the administration focused on what happened in Libya eight months ago, which was awful, rather than on what is happening there today, which is awful.

Refuse to negotiate: Republicans in Congress used to complain that the Senate Democrats hadn’t produced a budget in the last four years. But recently the Democrats did just that. So the Republicans abandoned their old talking point and are now refusing to form a conference committee to reconcile the Senate budget with the House budget.