Freshman U.S. Sen. Marco Rubio, R-Fla., is in solid shape with voters in the Sunshine State, according to a poll released by Quinnipiac University on Wednesday.

Rubio is garnering buzz that he could end up as Mitt Romneys running mate on the Republican presidential ticket and the poll finds that adding the favorite son would help the GOP in Florida. While the poll has Romney ahead of President Barack Obama, 47 percent to 41 percent, when Rubio is added to the GOP ticket the Republicans take 49 percent, while Obama/Vice President Joe Biden follow with 41 percent.

A poll released by Quinnipiac University on Wednesday finds that Mitt Romney, the presumptive Republican presidential nominee, has the lead over Barack Obama in the crucial swing state of Florida.

The poll finds Romney taking 47 percent followed by Obama with 41 percent. Obama led Romney 49 percent to 42 percent in a Q-Poll taken at the end of March, but Romney led 44 percent to 43 percent in one taken in early May.

While he has scaled back operations, essentially conceding the Republican presidential nomination to former Gov. Mitt Romney of Massachusetts, U.S. Rep. Ron Paul of Texas still has an upcoming primary state that he can build in -- South Dakota.

Supporters of two of the leading Republican candidates looking to challenge Sen. Bill Nelson in November insisted on Tuesday that the race has national implications, as the GOP looks to wrest control of the Senate.

As Americans prepare for Memorial Day weekend -- a time when presidential campaigns keep a lower-than-usual profile -- super-PACs have stepped into the void and are hitting their opponents in new ads and videos.

Crossroads Grassroots Policy Strategies (Crossroads GPS), a conservative super-PAC with ties to many prominent Republicans including strategist Karl Rove, on Tuesday unveiled a new commercial hitting the airwaves in Florida. The ad rips into President Barack Obama for his management of the economy and federal spending.

The team behind Republican Senate hopeful Connie Mack on Monday continued to drill primary rivalfor his ties to former Gov. Charlie Crist -- and demanded the U.S. Department of Justice launch a criminal investigation that LeMieux used improper influence to get Crist to appoint him to the Senate.

LeMieux and Mack are both angling for the Republican nomination to challenge Democrat incumbent U.S. Sen. Bill Nelson in November.

Two veteran members of Congress reached out across party lines to pass an amendment to help commercial and Navy ships navigate the St. Johns River.

On Friday, former U.S. Rep. Dave Weldon announced that he is going to enter the Republican primary to challenge Democrat incumbent U.S. Sen. Bill Nelson.

Weldon unveiled a video on Friday in which he announced his plans to enter the Senate contest with less than three months to go until the primary in August. He faces major opposition in the form of former U.S. Sen. George LeMieux, U.S. Rep. Connie Mack and retired Army officer and businessman Mike McCalister who took more than 10 percent of the Republican gubernatorial primary back in 2010.

The battle between the two leading Republican candidates for U.S. Senate -- George LeMieux and Connie Mack -- intensified Thursday as they exchanged attacks, LeMieux's launched on national television.

LeMieux fired away on The Daily Rundown, hosted by Chuck Todd on MSNBC.

The former U.S. senator drilled Macks attendance in Congress. This is a guy who doesnt show up to work, LeMieux said about Mack, accusing the congressman of having missed 40 percent of his votes.

As the campaigns redirect their focus toward the general election, all signs indicate that the battle between Democrat incumbent President Barack Obama and the former governor of Massachusetts, Mitt Romney, will be a close one.