The caucuses kick off the 2016 presidential nominating contests, marking a new phase in a tumultuous election that has exposed Americans' deep frustration with Washington and given rise to candidates few expected to challenge for their party's nomination when they first entered the race.
House Democrats are heading home from their annual issues retreat energized by a pep talk by President Barack Obama but facing steep odds of reclaiming the majority that delivered Obama his greatest first-term victories.
Like it or not, the long-running drama of Hillary Clinton's marriage -- her husband's infidelity and how she dealt with it -- is back as a subtext in this year's presidential race.
It's all beginning to resemble a bad flashback for the second-time Democratic presidential candidate, who once again finds herself barnstorming through the frozen stretches of Iowa with a diminished lead in the polls and an underdog rival on the rise.
So as Obama addresses House Democrats gathered in Baltimore this week for an "issues retreat" emphasizing party unity and team spirit, it's likely to be a bittersweet experience for many.
President Barack Obama hasn't endorsed a Democratic successor, but he's now revealed some personal pros and cons in the fight between Hillary Clinton and Bernie Sanders.