The publisher of PinkNews said they were "delighted" that same-sex marriage in England and Wales has been signed into law.
Benjamin Cohen, who also founded the Out4Marriage campaign, said, "Giving gay couples the right to marry will make our nation a more tolerant, open and welcoming place to live in and significantly increase the life prospects of so many people".
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Pitt was due to attend the premiere of a new documentary he narrated, but instead will focus on his "family situation".
ITV News spoke to six Democrats and Republicans to get their views on the dramatic showdown between the two presidential hopefuls.
Nicolas Sarkozy would give Britain the chance to reverse the Brexit vote if he is elected president of France.