Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
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(CNN) - The White House announced new economic sanctions against Russia today, accusing Moscow of continuing to support pro-Russian separatists in neighboring Ukraine. The European Union also imposed their own new round of sanctions, warning that Russia will "find itself increasingly isolated by its own actions."
Russian President Vladimir Putin denies backing the rebels, or any involvement in the shooting down of flight 17 over Eastern Ukraine. But it's not like Putin's KGB background inspired a wellspring of trust in the US when he took power.
Announcing new sanctions against Russia on Tuesday, President Barack Obama insisted that "this is not a new Cold War."
"It didn't have to come to this," Obama said from the White House. "It does not have to be this way. This is a choice that Russia and, in particular, President Putin has made."
Since MH17 was shot out of the sky, the fighting between Ukraine and Russian-backed separatists has only gotten worse. The violence creating a virtual force-field around the crash site.
But with round after round of sanctions targeting Russia, what makes the Obama administration believe these new punishments will be any different?
State Department spokeswoman Marie Harf spoke to CNN's Jake Tapper about why the government believes Putin will finally be forced to maneuver.
CNN's Karl Penhaul reports on some of the heaviest fighting in Gaza, as F-16 fighters continue to drop bombs.