Tennessee is a very Republican state. This has been the case for quite a while. You will remember that, in the 2000 presidential election, Democrat Al Gore Albert (Al) Arnold GoreCruz says Senate Republicans likely have votes to confirm Trump Supreme Court nominee 4 inconclusive Electoral College results that challenged our democracy Fox's Napolitano: 2000 election will look like 'child's play' compared to 2020 legal battles MORE lost his home state.

The governor is a Republican, both U.S. senators are Republicans, and seven of the nine U.S. House members are proud members of the Republican Party. Both houses of the state legislature are firmly in the hands of the GOP.

To top it off, Donald Trump, the 2016 Republican presidential candidate, won the volunteer state by a whopping 26 points.

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Twenty-six points: Now that’s a landslide.

Even with all of this, Republicans are worried about keeping the seat of retiring U.S. Sen. Bob Corker Robert (Bob) Phillips CorkerHas Congress captured Russia policy? Tennessee primary battle turns nasty for Republicans Cheney clashes with Trump MORE.

First, a few words about Corker. He, at times, has been anti-Trump — or at least he said some pretty unfavorable things about him. Then he made up with Trump and stopped saying nasty things.

He also has been Hamlet-like about running for reelection. First, he said he wouldn’t run, then he changed his mind and was going to run, and then finally decided not to run.

The Republican candidate for the Senate is Marsha Blackburn Marsha BlackburnTaylor Swift on National Voter Registration Day: 'We need everyone' Democrats smell blood with new DHS whistleblower complaint Hillicon Valley: Election officials prepare for new Russian interference battle | 'Markeyverse' of online fans helps take down a Kennedy | GOP senators unveil bill to update tech liability protections MORE, who is in her eighth term in the U.S. House of Representatives. Corker says he supports Blackburn, and he has given the maximum-allowed financial contribution to her campaign. But his enthusiasm for her candidacy — and for her personally — seems severely limited.

Corker, when asked, has refused to even say Blackburn’s name, and takes the opportunity to lavish praise in every way for the Democratic candidate for Senate, Phil Bredesen.

Bredesen is the former mayor of Nashville and served two terms as governor. He is universally described as charisma deficient. Yet, he is well-liked, and the adjective “popular” always seems to be used to describe his present political status.

Another plus for Bredesen is that he is very wealthy. Not only is he wealthy, he doesn’t mind spending his own fortune to get elected.

Ideologically, he is a centrist. This guy is no lefty liberal; this former health-care entrepreneur did well in business. So, Republicans can’t label him as anti-business or anti-free enterprise.

Bredesen left office seven years ago, in 2011, but he was so attractive to Democratic chances that Senate Minority Leader Chuck Schumer Chuck SchumerSenate Democrats introduce legislation to probe politicization of pandemic response Schumer interrupted during live briefing by heckler: 'Stop lying to the people' Jacobin editor: Primarying Schumer would force him to fight Trump's SCOTUS nominee MORE (D-N.Y.) actively recruited him. No other Democrat in Tennessee was considered to have a chance.

Blackburn is very conservative — some observers say even too conservative for conservative Tennessee. More than anything, her manner and persona is strident and intensely confrontational. Blackburn is happy to proclaim that she is “politically incorrect and proud of it.” She has tied herself to Trump in every way.

On Tuesday, President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE went to Nashville to campaign for Blackburn. This early trip in the political season was an unmistakable sign that the GOP is very anxious about the state.

Trump couldn’t contain himself. He said of the Democrats, “They don’t want the wall, they want open borders, they’re more interested in taking care of criminals than they are in taking care of you.” If that rhetoric was not enough, he branded House Minority Leader Nancy Pelosi Nancy PelosiPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare House lawmakers reach deal to avert shutdown Centrist Democrats 'strongly considering' discharge petition on GOP PPP bill MORE (D-Calif.) with this wildly untrue label: “the MS-13-lover.”

Trump’s plea was clear and to the point: “This election is a very important one, so you have to get out. We need Marsha Blackburn to win.”

It has been reported that Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Senate GOP aims to confirm Trump court pick by Oct. 29: report Trump argues full Supreme Court needed to settle potential election disputes MORE (R-Ky.) regards Tennessee as higher in importance than the states of Ohio, Pennsylvania and Wisconsin. Those three states have Democratic incumbents up for reelection; they have been targeted because Trump won those states.

The language that Trump used in Tennessee on Tuesday shows where he will be going to keep the Senate Republican. There will be no boundaries — no limits to the ugly divisive speech. Anything goes. Trump knows that a Democratic House and Senate would, for all practical purposes, end his presidency.

Tennessee was not even supposed to be in play.

Yet, when the final votes are counted, Phil Bredesen could very well be the Democrat’s savior.

Mark Plotkin is a contributor to the BBC on American politics. He previously was the political analyst for WAMU-FM, Washington’s NPR affiliate, and for WTOP-FM, Washington’s all-news radio station. He is a winner of the Edward R. Murrow Award for excellence in writing.