She came, she wore, she conquered. The amazing Michelle Obama showed why she is the most stylish US first lady since Jackie Kennedy this week when she visited the Uk and Ireland. From stunning full length gowns from Ralph Lauren and Tom Ford,  to paying tribute to the Brits by wearing Preen, they style savvy First Lady never put a foot wrong, charming us all with her natural style and elegance. Here is a look back at the outfits that made this the most stylish week  in politics ever! First stop was Ireland. Where Michelle arrived wearing a dress by US designer Peter Som. She also wore a red dotted…