A rare moment for the Sunday shows as the suddenly competitive Democratic primary takes precedence over the durably competitive Republican one. Both Her Majesty and Bernie Sanders will be on four of this morning’s big five — “This Week,” “Meet the Press,” “Face the Nation,” and “State of the Union” — to address Chelsea Clinton’s bizarre new role as mom’s attack dog on health care and the increasingly plausible scenario where Sanders wins Iowa and New Hampshire. (Desperate to lower expectations, Hillary will probably insist this morning that she’s the underdog in both states. She might not be wrong.) A dilemma for Team Clinton: How hard should she hit Sanders in front of a national TV audience? On the one hand, Iowa votes in two weeks. There’s no time to waste. On the other hand, every time someone allied with Hillary goes after him, his cash register starts ringing. The party line will be that South Carolina will back Hillary and restore the race to its natural order, but I don’t know. Imagine how demoralized Hillary fans will feel if Bernie Sanders goes 2 for 2 in the first two states when even Obama, at the height of Obamamania, could only manage one win.

Elsewhere, the Trump/Cruz war continues apace. Trump will appear on “This Week” and “State of the Union” while Cruz will guest on “Fox News Sunday.” As I write this on Saturday, here’s what my Twitter feed looks like:

Then came this:

Gonna be a fun morning. The full line-up is at the AP.