When Rep. Kevin McCarthy (R-California) was first sworn into the U.S. House of Representatives on January 3, 2007, Donald Trump’s presidency was a decade away — and McCarthy didn’t have to worry about pleasing the future MAGA movement. But MAGA demands eventually became unavoidable for the California Republican, whose years as a congressman are coming to an end now that he has announced his resignation. In a biting op-ed published on December 7, the New York Times’ Michelle Cottle looks back on McCarthy’s 17 years in Congress — arguing that his “flip-flopping” and “overpromising” were his down…