Sen. Joe BidenJoseph (Joe) Robinette BidenKentucky candidate takes heat for tweeting he'd like to use congressman for target practice The Hill's 12:30 Report Biden hosting fundraiser in Miami MORE (D-Del.) took aim at John McCainJohn Sidney McCainTrump congratulated Putin after his national security team told him not to: report Trump faces backlash after congratulating Putin on election win McCain rips Trump's congratulatory call to Putin as an insult to Russian people MORE over Iraq Monday, saying the Arizona senator and longtime military officer's Iraq policy fails to understand the reality of the situation.

Biden said McCain has a "total lack of understanding" and "no notion of what is going on" in Iraq.

"I don't understand anything about John's policy here," Biden said during a conference call with reporters. "I don't know what he is talking about except more of the same."

Biden said McCain's Iraq policy would "prevent" the US military from fighting resurgent al Qaeda and Taliban forces in Afghanistan and shows no "larger strategy" to fight terrorism beyond Iraq's border.

In an op-ed in Monday's New York Times, Obama called for a 16 month phased redeployment out of Iraq to free up troops to fight resurgent Taliban and al Qaeda forces in Afghanistan.

Biden called Obama's plan "profoundly right" and said it is "more in line with what our military needs are and what our military thinks."