'At some point' Russian Federation will retaliate for dumb U.S. sanctions, says Putin

Russia's President Vladimir Putin and US President Donald Trump shake hands during a bilateral meeting on the sidelines of the G20 summit

Russia's deputy foreign minister said Sunday that his country was poised to retaliate aggressively against any new US sanctions on Moscow.

The legislation, meant to retaliate against Russian Federation for its alleged interference in the 2016 election, passed in a vote of 419 to 3 on Thursday, effectively veto-proofing the bill should President Donald Trump want to overrule it.

If Trump does decide to veto the bill, Congress has shown it could easily override him.

Russian President Vladimir Putin has already warned that he may expel USA diplomats if President Trump signs the sanctions.

Senate Minority Leader Chuck Schumer derided as "laughable" Scaramucci's assertion that Trump could negotiate even tougher sanctions against Russian Federation.

The number matches the staffing level at Russia's embassy in Washington, D.C. U.S. Embassy spokeswoman Maria Olson did not immediately know how many people would have to leave to meet the Russian Federation demand, the Associated Press reports.

Asked about the potential for additional sanctions against Washington, Mr Putin described the reduction in diplomatic staff as "painful" and said he now opposed further measures.

On Tuesday, the U.S. House voted 419-3 in favor of the sanctions.

After the House passed the bill, press secretary Sarah Huckabee Sanders said Trump was reviewing the legislation but supports "tough sanctions".

Republicans and Democrats urged Trump to quickly sign the measure into law after the House and Senate cleared it with veto-proof majorities in both chambers.

The legislation punishes Russian Federation over its interference in the 2016 election, military moves in Ukraine, and support for Syrian leader Bashar al-Assad. It is expected to garner strong support in the Senate, despite concerns about it from Trump.

Before President Barack Obama left office, he ordered the seizure of two Russian diplomatic compounds and expelled 35 of its diplomats in response to alleged election interference, a claim that Moscow has consistently denied.

Trump's fellow Republicans as well as Democrats have pushed for more sanctions partly as a response to USA intelligence agencies' findings of Kremlin interference in the election campaign.

The document now should be approved by the Senate and signed by the President of the United States.

Before Mr Trump's decision to sign the bill into law, Republican senator John McCain said its passage was long overdue, a jab at Mr Trump and Republican-controlled Congress.

Moscow ordered the U.S. to reduce its diplomatic presence in Russian Federation to 455 diplomats and staff and also barred it from using a Moscow summer house and storage facility.

But rejecting it could lead to an embarrassing veto override, as the bill cleared both chambers by wide margins, and lead to criticism that he's seeking to protect Russian Federation.

"As you know, we are exercising restraint and patience, but at some moment we'll have to retaliate".

"This goes beyond all reasonable bounds", Putin said.

"The countries could overcome more critical problems by taking joint action", Putin said.