Trump met Putin and people reacted exactly how you would expect

Donald Trump is facing blistering attacks from all sides after he backed Russian denials over accusations of interference in the 2016 US election.

The US president said he could think of "no reason" why Russia would be involved with the meddling following a meeting with Russian President Vladmir Putin in Helsinki, and claimed "both countries" were responsible for the decline in US-Russia relations.

The views, voiced during a remarkable joint press conference with Putin, are at odds with the general consensus - among US intelligence agencies and across the political spectrum - that Russia did seek to alter the election.

The director of National Intelligence, Dan Coates, said "we have been clear in our assessments of Russian meddling".

Hillary Clinton took aim at Trump, taking her shade from before the conference and topping it.

Before the highly anticipated summit between Trump and Putin, she called into question Trumps's loyalties in the first tweet.

After the conference, she tweeted the answer to her question, based on Trump's performance in the news conference.

Former CIA director John Brennan claimed Trump had committed treason.

Former FBI director James Comey echoed Brennan's sentiment.

Democratic leader Nancy Pelosi called Trump's behaviour "embarrassing".

Democratic strategist David Axelrod was horrified by the press conference.

While Republican strategist Mike Murphy slated Trump as "weak" (among other things).

Fox News host Abby Huntsman accused Trump of throwing America "under the bus".

Republican senator John McCain did not hold back.

McCain's close friend, Republican senator Lindsey Graham, said Trump's performance will "create far more problems than it solves".

He also suggested checking the football that Putin gave Trump as a gift following Russia's World Cup.

Republican Mitt Romney blasted Trump's actions as "disgraceful and detrimental to our democratic principles".

Former house speaker Newt Gingrich, a Trump supporter, called it "the most serious mistake of his presidency".

Actor Chris Evans criticised it as a "disgrace" and "un-American".

Arnold Schwarzenegger called Trump a "little wet noodle".

More: 13 things Trump has actually said about Vladimir Putin