By Ashley Collman PUBLISHED: 13:46 EST, 10 March 2014 | UPDATED: 15:18 EST, 10 March 2014 In his latest jab at the Palin family, Levi Johnston has announced he will take on Todd Palin in next year's Iron Dog snowmobile race. Johnston, who had a child with former vice presidential candidate Sarah Palin's daughter Bristol in 2008, told TMZ that it's been his lifelong dream to enter the three-day, 2000-mile race through the Alaskan wilderness. But his main goal in entering 'the world's logesnt, roughest snowmobile race' is taking down Todd Palin, Sarah's husband and his son Tripp's grandfather.
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Johnston has a son with Sarah and Todd Palin's daughter Bristol, but the couple are now estranged
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The 23-year-old announced he is entering next year's Iron Dog race to compete against Todd
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Todd has won the race four times in the past, but had to pull out of this year's race after only 100 miles
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After breaking up with Bristol Palin for a second time in 2010, Johnston has continued to speak out against Alaska's former first family in the press
Happier times: Bristol and @placeholder had son Tripp in December 2008.