Donald Trump has taken a big gamble with Roy Moore. In ten days critical elections will be held for the Senate seat in Alabama vacated by Senator Jeff Sessions due to his appointment as attorney general. The Republican majority in the Senate is currently very narrow with 52 seats versus 48 for the Democrats. If Democratic candidate Doug Jones takes Alabama that balance would shift to a razor-sharp 51–49. Such a slim majority would make it more difficult for the president to advance his agenda including tax and health care reform in the Senate.