“Over the last decade, President Trump has steadily expanded executive power, pushing the limits of his authority and evading traditional constraints. But a Democratic takeover of Congress on Tuesday could set up one final constitutional test for the Trump era, challenging the legislative branch to reclaim its role as a check on an increasingly powerful White House,” the Los Angeles Times reports.“A blue wave could give Democrats control of both chambers of Congress, handing them not only investigative and subpoena powers in the House, but also, through the Senate, the authority to confirm presidential appointments, pursue impeachment trials, and control legislation and federal spending.”“That would historically be enough to bring a president to heel. Yet the Trump administration’s broad assertion of executive privilege and politicization of the Justice Department could make oversight from a Democratic Congress sluggish — if not impossible — over Trump’s final two years.”