Arizona MAGA stalwart Kari Lake’s obsession with bogus claims about voter fraud was so strong that even former President Donald Trump got tired of hearing about it, a new book claims. The Guardian has obtained a copy of a new book from Politico journalist Meridith McGraw, titled Trump in Exile, and it claims that Trump mocked Lake behind her back for constantly harping on the purportedly “stolen” 2020 election that Trump lost to President Joe Biden. “It doesn’t matter what you ask Kari Lake about,” Trump said at one point, according to McGraw. “‘How’s your family?’ And she’s like, ‘The family’…