Tom Williams/Getty Images Two recent tweets from members of Congress illustrate how, in the wake of President Joe Biden signing the Covid-19 relief bill, Republicans are trying to “have their cake and vote against it, too,” as Barack Obama once put it. That $1.9 trillion American Rescue Plan, which Biden signed into law last Thursday, didn’t receive a single Republican vote, even though recent polling shows a majority of Republican voters have said they somewhat or completely support it. The popularity of the legislation puts Republican members of Congress in a bind: How does one message against a bill that most Americans like, and that will cut child poverty in half, while also juicing an economy that’s been ravaged by the year-long pandemic?