Is Ivanka Trump the acting First Lady of the USA?

Ivanka Trump according to media reports is more the First Lady of the US than Melania Trump.

Ivanka, chaired a round table discussion between POTUS and the Canadian Prime Minister Justin Trudeau, with a message about "the importance of women having a seat at the table".

She sat in the middle of her father POTUS and the Canadian Prime Minister at the Oval Office for photos.

Many internet users are questioning her status to chair such a meeting and also asking of the whereabouts of FLOTUS Melania Trump. 

Ivanka Trump is seen more with the President than the first lady.
Check out some of the Twitter rants...