After a quarter-century in Congress, Rep. Jerry Nadler of New York stands on the brink of an outsize role in American political life. As Judiciary Committee chairman in the Democratic-controlled House, Nadler leads his party’s efforts to exercise oversight of President Donald Trump and his administration. If Democrats pursue the fourth serious presidential impeachment effort in American history, Nadler would wield the gavel when it starts. Nadler, now 71, first took on the future president as a New York assemblyman in the 1980s when he joined the resistance to a massive Trump development project on Manhattan’s Upper West Side. Trump won that battle, though his development got downsized. In today’s confrontation, the entire country holds a stake. Nadler and House Speaker Nancy Pelosi of California face difficult political choices. Trump drew less than 20% of the 2016 vote in both their districts, but some Democratic colleagues fear a 2020 backlash from impeachment. So party leaders have moved cautiously in the wake of the Trump-Russia special counsel report. Over scrambled eggs at Westville Hudson in the lawmaker’s New York City district, Nadler sat down to discuss the challenge.