Speaking to ITV Central, Aidan Burley said his tweets stemmed from watching the opening ceremony and seeing "things like the CND symbol being lit up for 20 minutes".
At that point, he says, "I started to question why this kind of left-wing politics was creeping in to the opening ceremony."
He adds that with the "constraint" of a 2,0000-year history to document, "it seems a bit strange that he [Danny Boyle] would have such a big focus on rap music...it seemed like there were some trite attempts to focus on some modern parts of our multiculturalism."
He also said: "I think it is sad that towards the end we had Shami Chakrabarti from the left-wing campaigning organisation Liberty carrying the flag."
Boris Johnson today dismissed suggestions the Olympic opening ceremony had been too left-wing.
London's Mayor described the event in the Olympic Stadium, watched by a global audience of around one billion, as a triumph for Great Britain.
"It was actually the truth about this country in the last two or three hundred years told in a big, dynamic way.
"People say it was all leftie stuff. That is nonsense. I'm a Conservative and I had hot tears of patriotic pride from the beginning. I was blubbing like Andy Murray."
Labour frontbencher Michael Dugher said:
David Cameron should show some leadership and demand a full apology from Aidan Burley immediately.
Burley has got form. His comments were stupid, ignorant and offensive.
David Cameron has said that the Conservative Party has changed but it is clear from the words of his own MP that not a lot has changed.
Speaking on Sky News, Tory MP Aidan Burley repeated his concerns that last night's London 2012 opening ceremony "turned into an overtly political ceremony."
"It's not just me that thinks there was a left-wing political bias," he added.
He also said there was too much emphasis on rap music, suggesting he would liked to have seen more of a role for the Beatles and the Rolling Stones.
Sir Paul McCartney closed the show with a rendition of Hey Jude.
Labour MP David Winnick has responded to comments by a Tory MP, who insisted today that he had been misunderstood after sparking a major backlash by branding the Olympic opening ceremony "leftie multicultural crap".
Mr Winnick said that a "period of silence" was needed on Aidan Burley's part. He added: "The fact of the matter is that his comments were totally inane, anti-British and at variance with the feeling of millions of people up and down the country over the success of last night's opening.
"A great number of people in Cannock, including many who voted for him, will be wishing they had a different MP."
In response to the online anger directed at his tweets about the Olympic Ceremony, the Conservative MP Aidan Burley has tweeted:
Seems my tweet has been misunderstood. I was talking about the way it was handled in the show, not multiculturalism itselfFrom @AidanBurleyMP on Twitter:
He does not comment on criticism about him tweeting that it was "the most leftie opening ceremony I have ever seen."
In response to Conservative MP Aidan Burley's tweets that this was "the most leftie opening ceremony I have ever seen", a Downing Street source has told me: "We don't agree with his views."