When was the last time that Congress had big bipartisan votes on anything? Both the House and Senate overwhelmingly voting in favor of President Obama getting America involved in Syria and Iraq to defeat ISIS or ISIL, depending on how you define what Secretary of State John Kerry calls, "The Enemy of Islam". The so-called Islamic group that wants to occupy the Levantine region of Arabia that includes both Iraq and Syria.
As far as Hillary Clinton in Iowa. I think it is pretty likely that Hillary Clinton will run for President in 2016 and perhaps will announce by the spring of 2015. Otherwise she doesn't have much business being at Senator Tom Harkin's political event last weekend. But as David Brooks and EJ Dionne pointed out, she won't have an easy ride to the Democratic nomination. She'll get pushed by both center and further Left Democrats to take hard stands on key issues in order to win the nomination.
As far as the battle for the U.S. Senate. Yeah Kanas is good news for Democrats this week. Because it means a popular Center-Left leaning Independent will be the main challenger to a very unpopular Republican Senator Pat Roberts in November. But as I've been talking about for months now, Kansas is not the only problem and thing that could keep Republicans from winning back the Senate in November. They are still defending Georgia and Kentucky where the Democratic challengers are running very strong. Tied in Kentucky against Senate Minority Leader Mitch McConnell. Senate Republicans will may have to hold all three of these states in order to win back the Senate.