Daddy Bill Clinton took his daughter and her beau, the pride of Belvedere Ca., Ian Klaus, around the new Tate Modern Art Gallery in London last week.Says a conviently placed Londoner to a London paper, 'President Clinton seemed comfortable with Ian and glad that his daughter found a decent man.'The trio toured the galleries with the rest of the public, but with a security detail of 12Bubba bought drinks for the young couple.Chelsea and Ian, who met at a rally of students at Oxford post-9/11, are expected to announce their engagement by JuneIn case you are wondering, Klaus's parents, the...