(CNN) - Florida Rep. Connie Mack won Tuesday's Republican primary in Florida over other Republicans seeking to challenge Democratic Sen. Bill Nelson.
Mack's main opponents–former Rep. Dave Weldon and retired Army Col. Mike McCalister–conceded.
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The latest results from the Secretary of State's website indicated Mack had 58.7% of the vote. While the website did not indicate what portion of precincts were included in those tallies, the returns showed more than 1.1 million votes had been counted.
Elsewhere in the state, Republican incumbent Rep. Cliff Stearns was nearly tied with challenger Ted Yoho for the District 3 seat. Unofficial returns from the Secretary of State showed Yoho with 34.34% and Stearns, who is in his 12th term, with 33.14% on Tuesday evening.
Stearns is chairman of the Energy and Commerce Committee's investigative subcommittee and has drawn attention for his investigations into the Obama Administration, such as one into the failed Solyndra loan guarantee.
The fellow Republican challenging incumbent Rep. John Mica conceded Tuesday evening, as unofficial results showed the 10-term Congressman with 61% of the vote and Sandy Adams at 39%. Mica is chairman of the Transportation and Infrastructure committee.
In the Senate race, Mack had maintained a steady lead in the months leading up to the contest. A Quinnipiac University poll conducted in June showed he had the backing of 41% of Republican registered voters while his competitors trailed far behind in the single digits.
The winner of Tuesday's GOP contest will go on to challenge incumbent Nelson in Florida, a crucial swing state in the presidential election.
In a hypothetical match-up with Nelson, a recent poll indicates the two-term senator has a lead over Mack. Forty-seven percent of likely Florida voters said they would back Nelson, while 40% said they would choose Mack, according to the Quinnipiac University/New York Times/CBS Poll released August 1.
The Cook Political Report rates the seat as leaning toward the Democratic Party, while another political handicapper, the Rothenberg Political Report, describes the race as a "toss up/tilting Democrat" contest.
Mack enjoys the support of many high-profile Republicans, including those from both the establishment and more conservative wings of the party. Presumptive GOP presidential nominee Mitt Romney, former Florida Gov. Jeb Bush, Rep. Michele Bachmann, and Rep. Rand Paul are among those who fall in Mack's column.
Too bad Mica won, but at least he put another Tea Party candidate out to pasture.
Term limits. Term limits anyone?
I thought he was still in rehab ?
Boy, this guy will make voting for Nelson much easier .....
Mack is supported by Michelle Bachmann and Rand Paul, so you know he's extremely right wing and extremely nuts. Don't trust or vote for someone whose has "CON" as the first three letters of his name.
I don't think he'll win against Nelson come the fall.
its a sorry commentary on florida voters that they would put this legacy politician back in office time and again. rich, disconnected, partisan and an unproductive republican lap dog.
There are some people in this world who do not belong in politics. Mr. Mack is one of them. The cliche says, "Power corrupts. Ultimate power corrupts ultimately." I think that falls short of reality. Power doesn't corrupt. Power attracts those most easily corrupted. Mack is a textbook example of someone attracted to power who would be easily corrupted and delusional. His extreme views do not need any power behind them.
Connie? That was my grandmother's name. He must mean "Neo-Connie".
so long old , tired, no ideas , sen. nelson...been there to long ...the senate is not a retirement home...