By I-Hsien Sherwood | ( | First Posted: Oct 27, 2012 04:23 PM EDT

Republican presidential nominee Mitt Romney waves to the crowd at the conclusion of a campaign rally at Worthington Industries in Worthington, Ohio October 25, 2012. (Photo : Reuters)

Today's roundup of swing state polls shows Republican challenger Mitt Romney and President Obama solidifying their support in several states that have been leaning their way, but the race is tightening in some states that haven't been up for grabs in a while.

A Sunshine State News/VSS poll in Florida gives Romney a 5-point lead over Obama, 51 percent to 46 percent.

A Gravis poll also showed Romney leading by a point in Florida, 50 percent to 49 percent.

Two polls in Virginia from Fox News and Rasmussen show Romney leading by two points.

But Obama is up by 4 points in a Gravis poll in Iowa.

He also leads in two Nevada polls from NBC NEWS/The Wall Street Journal and Gravis, with 3-point and 1-point margins, respectively.

New Hampshire has been trending red, but a New England College poll gives the lead to Obama by 3 points.

News is mixed in Colorado as a Public Policy Polling survey shows Obama ahead by 4 points, while an NBC/WSJ poll has the candidates tied.

The candidates are also tied in a Rasmussen poll in Wisconsin.

And in Ohio, the most critical swing state prize of all, Obama leads by 2 points in an ARG poll.

Virginia and Florida are likely Romney pickups and won't affect the expected electoral math much. Indeed, if Romney doesn't take Florida, it will be all but impossible for him to win.

Virginia is helpful as a hedge to whichever candidate doesn't take Ohio, but it's a nice batch of votes for Romney in his journey to 270 electoral votes.

Iowa and Nevada have been moving toward Obama lately, so no surprises there.

But Wisconsin has been leaning toward Obama for a while, and a loss of support for the president there could presage a shift in the Rust Belt toward Romney.

Polls have been mixed in Colorado since the first presidential debate on Oct. 3, and the state is still very much up in the air.

And New Hampshire's paltry 4 electoral votes makes it less important than most other states, but several scenarios have the candidates in a tie for votes, so even it counts this year.

The big news is Ohio, where the majority of polls over the last two weeks give Obama a small but steady lead.

No Republican has ever won the White House without Ohio, and if Romney is to be the first, it will be a difficult road for him.

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