Good Monday morning. Here are some of the stories making news in Washington and politics today.

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• The longest government shutdown in history inflicted severe political damage on President Trump, dragging down his poll numbers and stirring concern about his ability to navigate a divided government. He now appears without a plan for mounting a strong campaign in 2020.

• With the shutdown over for now, Congress will hit reset this week, showcasing a Democratic agenda in the House that was overshadowed by the struggle to reopen the government. In both chambers, lawmakers have teed up a high-impact lineup of hearings.

• As income tax filing season opens, a sweeping tax code overhaul and the lingering effects of the shutdown could squeeze taxpayers’ refund checks — and delay them, too.