By 1920, he was a contender for the Republican presidential nomination, though not a front-runner. Florence gave him tentative support, apparently influenced by a Washington clairvoyant 'Madame Marcia' Champrey, who correctly forecast that Warren would become president, but added that he would die in office. Florence took a more active role at the Republican convention than most candidates wives and curried favor with journalists, who liked to record her often colorful remarks. She lobbied delegates to consider her husband after the convention became deadlocked, and he eventually became the nominee. Warren largely conducted a front porch campaign, and Florence had control of whom her husband met inside the house. She was very precise with her appointments for her husband and telephoned campaign managers if he was late. She set off a waffle craze after The New York Times reported her eating a waffle at breakfast, and guests asked to be served it during their visit. The election was overshadowed by attempted extortion by Carrie Phillips, threatening to reveal Warren's adultery. However, Florence's newspaper experience gave her an advantage over other candidates' wives; as Henry DeWolfe was dead, she was able to deflect press inquiries about her first marriage by implying that she had been widowed. In addition, she instructed the campaign not to respond to allegations of Warren's partial black ancestry. Florence also earned the approval of ex-President Taft.