U.S. Sen. Hillary Clinton (D-N.Y.) will campaign at a Henderson high school Friday on behalf of her former rival, U.S. Sen. Barack Obama (D-Ill.), the Obama camp said Wednesday.

Clinton is scheduled to appear at a campaign rally beginning at 11 a.m. at Green Valley High School. The Obama campaign is using the event to jump start a voter registration drive over the weekend.

Obama, the presumptive Democratic presidential nominee, lost the Nevada caucus to then-rival Clinton in January. After a protracted primary race ended in May, Clinton has made a number of recent public appearances stumping for Obama.

Recent polls suggest the Illinois Democrat is in a position to take Nevada -- a state that traditionally has gone to the GOP -- in his general election bid against U.S. Sen. John McCain (R-Ariz.).

Clinton's appearance is open to the public and to the press. Tickets are required for the event and will be available for free Wednesday and Thursday at the locations listed below.

Campaign for Change Las Vegas HQ
3376 S. Eastern Ave., Suite 115
Las Vegas, NV 89169
Tickets Available: Wednesday, 9 a.m.-9 p.m.; Thursday, 9 a.m.-9 p.m.

Nevada State Democratic Party
1210 S. Valley View Rd., Suite 114
Las Vegas, NV 89102
Tickets Available: Wednesday, 9 a.m.-9 p.m.; Thursday, 9 a.m.-9 p.m.

Campaign for Change CD3 Office
3711 E. Sunset Rd., Suites C-4 through C-6
Las Vegas, NV 89120
Tickets Available: Wednesday, 9 a.m.-9 p.m.; Thursday, 9 a.m.-9 p.m.

Sen. Steven Horsford Campaign HQ
4060 N. Martin Luther King Blvd., Suite 101B
North Las Vegas, NV 89032
Tickets Available: Wednesday, 9 a.m.-9 p.m. and Thursday, 9 a.m.-9 p.m.