US Republican presidential candidate Donald Trump receives Former Alaska governor Sarah Palin's endorsement at a rally at Iowa State University in Ames, Iowa, on Tuesday. Picture: REUTERS
US Republican presidential candidate Donald Trump receives Former Alaska governor Sarah Palin's endorsement at a rally at Iowa State University in Ames, Iowa, on Tuesday. Picture: REUTERS

AMES — Sarah Palin, the politician-turned-reality TV star, offered a passionate endorsement on Tuesday to Republican presidential frontrunner Donald Trump, the reality TV star-turned-politician, declaring that "the status quo has got to go".

Ms Palin, a former Alaska governor who was Republican Senator John McCain’s running mate in the 2008 election won by Democrats Barack Obama and Joe Biden, appeared with Mr Trump at a rally in Ames, Iowa, two weeks before the state’s February 1 caucus, the country’s first nominating process ahead of the November 8 election.

Mr Trump is in a close race in Iowa with fellow conservative Republican Ted Cruz.

Ms Palin’s folksy, plain-speaking style has won her a loyal following among some conservatives but she remains a polarising figure, even among Republicans.

It is unclear whether she can attract additional support for Mr Trump, whose own blunt rhetoric has helped lift him to the top of the crowded Republican field.

"He is from the private sector, not a politician," Ms Palin said in an animated speech after joining the business mogul and former host of TV’s The Apprentice on stage. "Can I get a hallelujah?"

She described Mr Trump as an anti-establishment candidate who would "kick ISIS’s ass", referring to the Islamic State.

Just hours after Ms Palin backed Mr Trump, police in Alaska said they had arrested her oldest son, Track Palin, on suspicion of assaulting a woman and carrying a gun while intoxicated.

Ms Palin said there was nothing wrong with Mr Trump being a multibillionaire and that it did not make him an elitist, citing the time he had spent with construction workers as a property developer.

As Mr Trump stood alongside, Ms Palin said, "The status quo has got to go," adding that the political establishment had been "wearing political correctness kind of like a suicide vest".

In a statement before the event, Mr Trump said he was "greatly honoured" by the endorsement. "She is a friend, and a high-quality person whom I have great respect for."

Mr Trump has led national opinion polls among Republicans for months but is in a tight contest with Mr Cruz, a US senator from Texas, for the support of Iowa Republicans, who lean conservative and whose evangelical Christians are a major voting bloc.

Ms Palin, who often discusses her Christian faith, is popular among that group and endorsed Mr Cruz when he ran for the US Senate in 2012.

Mr Cruz responded to her switch of allegiance with magnanimity. "Regardless of what she does in 2016," he tweeted, "I will always be a big fan."

She devoted a large portion of her speech to deflecting criticism from Mr Cruz and others that Mr Trump, who did not oppose legal abortion at least for a time, was not a true conservative.

Celebrity appeal?

Despite the Democratic victory, Ms Palin’s 2008 vice-presidential run made her a national celebrity.

Suggesting there were no fiercer fighters for conservative values than a small-town "hockey mom", the former beauty pageant winner professed a love of hunting with guns and thought it more important that the US increase drilling for oil than fret about climate change.

Since resigning her governorship in 2009, Ms Palin has worked as a conservative political commentator and as the producer and star of lightly staged television shows about her large family enjoying Alaska’s rugged landscapes.

But even some former admirers have wondered whether her moment has passed, particularly after a speech a year ago to conservative Iowa voters that at times was hard to transcribe and even harder to follow.

Joe Brettell, a Republican strategist in Texas, said he thought Ms Palin would not help Mr Trump much "beyond a jolt in the news cycle".

The crowd in Ames listened to Ms Palin warmly but was divided afterward as to how valuable she would be. June Heidn said she was "inspiring" and might help Mr Trump appeal to female voters.

Mike Caruso said it did not help him as he weighed giving Mr Trump his vote. "I think he’s pretty solid without her," he said.