Senate Majority Leader Harry ReidHarry Mason ReidGOP pushes to change Senate rules for Trump Trump presses GOP to change Senate rules Only thing Defense’s UFO probe proves is power of political favors MORE (D-Nev.) holds a seven-point lead over Republican challenger Sharron Angle in a poll released Friday.

The Las Vegas Review-Journal/Mason-Dixon poll shows that, if the election were held today, Reid would defeat Angle 44-37 percent. Ten percent of respondents were undecided and five percent did not choose a candidate.

Reid's lead comes after a week in which he slammed the Tea Party-backed Angle in a new television ad. The ad alleges that Angle would have opted to kill jobs in Las Vegas by killing a large construction project, and says she is too extreme.

In previous Mason-Dixon polls, Reid and Angle have been statistically tied, making this poll the first time the Democrat took the lead over the Republican. Here is more from the LVRJ:

He's had five perfect weeks," said Brad Coker of Mason-Dixon Polling & Research, which conducted the survey. "The race has been all about her, and he's been doing a good job of pounding her."

Yet Coker said it's too soon to write off Angle. More than one-quarter of the nonpartisan swing voters who probably will decide the Nov. 2 election haven't jumped to the still-unpopular Reid but instead are undecided or in the "other" or "none of these candidates" columns, the poll showed.

"I wouldn't write her obituary just yet," Coker said, noting it's a long way to November. "Three and a half months is a lifetime, and at some point she's going to be able to start fighting back."

Reid and Angle were just about neck-and-neck in second-quarter fundraising, but Reid spent $3 million in television ads during that span, part of a flurry of spening against his opponent.

Angle's campaign has spent $656,773 and now has $1,767,671 cash on hand.

The poll surveyed 625 Nevadans between Monday and Wednesday.