Of 129 Tea Party candidates for the House, 7 are running in solidly Republican districts — all but one of those seats is now held by a Republican. Another 7 are running for seats currently held by Democrats but in districts leaning toward the Tea Party Republican.

Nineteen are in tossup races, for seats that are held, with the exception of two, by Democrats. And 29 are running for seats in districts that are leaning Democratic — of those, only one is currently held by a Republican. Sixty-seven are challenging Democrats who are expected to win — though this is a year when the unexpected has been more rule than exception.

In the Senate, there are 9 Tea Party candidates running for a potential of 27 seats — not including those where the incumbent is the Republican nominee.

For purposes of the list, Tea Party candidates were those who had entered politics through the movement or who are receiving significant support from local Tea Party groups and who share the ideology of the movement. Many have been endorsed by groups like FreedomWorks or the Tea Party Express, or by conservative kingmakers like Sarah Palin and Senator Jim DeMint of South Carolina, but those endorsements alone were not enough to qualify as a Tea Party candidate.

The states with the highest concentration of Tea Party candidates are South Carolina, Massachusetts and Arizona. In South Carolina, this reflects the energy of the movement; in Massachusetts, where almost none of the candidates are expected to win, it reflects a historically weak Republican farm team.

Election handicappers have said for months that the test of the Tea Party would be whether its energy ended up hurting Republicans more than it helped, by leading to the selection of less viable candidates in the primaries.

Polls suggest that in the Senate, the hurt may outweigh the help. The four seats that are leaning or solidly Republican and feature Tea Party candidates were in Republican hands to begin with. Ms. O’Donnell’s surprise upset of the establishment candidate in Delaware dashed Republican hopes for a seat that even Democrats had expected to lose. The Tea Party candidate in Nevada, Sharron Angle, has improved the odds that Senator Harry Reid, the leader of Democratic majority, hangs onto his seat. And having Rand Paul as their nominee has made the fight in Kentucky tougher than Republicans anticipated.