Today on the Trail: Clinton campaigns in three places at once

TotT is a daily rundown of campaign events, compiled by Katie Rooney.

Sen. Hillary Clinton (D-NY) has a jam packed weekend. Friday she speaks to the International Association of Fire Fighters in Portsmouth, N.H. along with several other candidates. But Saturday Clinton zips from one city to another - she gives the commencement address at Claflin University in Orangeburg, South Carolina in the morning then speaks at Ohio Democrats' fundraiser in Columbus on the Ohio State Fairgrounds at 7 p.m. Meanwhile her supporters are even more widespread. Saturday the Clinton campaign urges supporters to canvass New Hampshire by going door to door, holding phone banks and participating in other grassroots activities around the state from 10 a.m. to 4 p.m.

Here's where some of the other presidential candidates will be this weekend:

* Sen. John McCain (R-AZ) attends a meet-and-greet in Columbus, Ohio at noon Friday.

* Sen. Barack Obama (D-IL) kicks off his campaign in two different cities - Friday it's in St. Louis and Saturday it's in Kansas City, Missouri. Sunday Obama's in Chicago without any public events. He also speaks at the International Association of Fire Fighters in Portsmouth, N.H. Friday.

* New Mexico Gov. Bill Richardson (D) is in Los Angeles this weekend. Friday at 9 a.m. he'll attend a breakfast meeting with LA county elected officials in Monterey Park then hosts private fundraisers and other closed campaign events. Later that night he'll give a guest appearance on Jay Leno's "The Tonight Show." Saturday he gives a speech to the Service Employees International Union in Los Angeles at 11:30 a.m.

* Sen. Chris Dodd (D-CT) will be in New Hampshire this weekend. Friday he'll host a meet-and-greet with a state senator at 8 a.m. in Portsmouth then speak at the International Association of Fire Fighters' State and Provincial Leadership Meeting at 10 a.m. At 1:30 p.m. he'll host a "kitchen table conversation" in Madbury, followed by a house party at 6:30 p.m. in Manchester. Saturday he'll participate in the Milford Downtown Walk at 9:30 a.m. and attend a house party in Merrimack at 11 a.m. followed by another in Bow at 1 p.m. Meanwhile, Dodd's wife Jackie Clegg Dodd visits the Greenville Head Start at 11:30 a.m. in South Carolina followed by a media availability. Later she'll attend the York County Fundraiser in Fort Mill.

* Former Arkansas Gov. Mike Huckabee (R) speaks at the Iowa Bandmasters Association meeting in Des Moines at 11:30 a.m. Friday. Saturday he attends the NASCAR Dodge Avenger 500 race in Darlington, SC at 2:30 p.m. Later that night he'll attend a barbecue hosted by South Carolina former first lady Iris Campbell in Georgetown Saturday.

* Rep. Tom Tancredo (R-CO) is in Iowa this weekend hosting a town hall meeting in Cedar Rapids at 6 p.m. Friday and another in Dubuque at 6 p.m. Saturday. Sunday he'll attend a house party from 2 to 4 p.m. in Davenport.

* Sen. Sam Brownback (R-KS) campaigns in Iowa Friday, making stops in Urbandale, Marshalltown and Cedar Rapids. He'll attend a Christian school assembly, make an address to the "Preventing Abuse Conference" and a round table TV interview on Iowa Press. Friday evening he'll address the Wisconsin GOP Convention.

* Sen. Joe Biden (D-DE) speaks at the International Association of Fire Fighters in Portsmouth, N.H. Friday.

* Donald Trump holds a fundraiser for former New York City Mayor Rudy Giuliani (R) in Palm Beach, Fla. Saturday.

* Former Sen. John Edwards (D-NC) speaks at the International Association of Fire Fighters in Portsmouth, N.H. Friday. Saturday he speaks at New England College's commencement in Henniker, N.H. at 11 a.m. and later that evening attends the Annual Grover Cleveland Dinner in Bartlett at 7 p.m.

* Former Massachusetts Gov. Mitt Romney gives the commencement address at Hillside College in Michigan Saturday.

-Katie Rooney