Television networks began juggling two major stories on Monday, still wondering whether Tropical Storm Isaac will cause them to divert a large amount of attention from the Republican National Convention in Tampa.

Welcome to another Republican presidential debate, the twentieth for the remaining candidates, and the seventh hosted by CNN, which broadcasts the two-hour scrum from Mesa, Ariz., at 8 p.m. ET on Wednesday, moderated by John King.
Keeping the crowded Republican presidential debates fair, lively and topical can seem like the equivalent of juggling while walking a tightrope.

Keeping the crowded Republican presidential debates fair, lively and topical can seem like the equivalent of juggling while walking a tightrope.
CNN has named Jessica Yellin as its new chief White House correspondent.
Sam Feist, CNN's Washington bureau chief, said the network has assembled a team with deep political experience and he wants to hear what they have to say.
"These are experts on politics," he said. "How they react to an event or convention speech is interesting or fascinating. I'm always interested to hear their first reaction after a speech."