Please post other current National Enquirer stories that have substantial truth behind them, because so far this is what they are basing this story on:
The publication is the first to come up with such an allegation against the President based on the account given by an anonymous limo driver and a video footage which is still to be found.

AND this is a fair description from WIKI:

Founded in 1926[1], the tabloid has gone through a variety of changes over the years, and is currently well-known for exaggerating, as well as fabricating information in its articles focusing on celebrity news, gossip, and crime in order to sell its newspapers.
The Enquirer makes no secret of the fact that it will pay sources for tips, a practice generally frowned upon by the mainstream press. At least one prominent story, connected to the Elizabeth Smart case, had to be retracted after it was revealed that two informants had fabricated false information. The informants had been paid a large sum for the story.
In recent years it has sought to establish a reputation for reliable journalism and had some success, often scooping other media on the O.J. Simpson and Monica Lewinsky stories. However, the tabloid has struggled with declining circulation figures due to competition from glossy tabloid publications which is why American Media now also owns former competitor, The Star.