Jessica Mulroney and her sister Elizabeth acquired for the high-end lingerie lines la Perla and Cosabella. Brownstein married Ben Mulroney, the eldest son and second eldest child of Mila Mulroney and former Prime Minister of Canada Brian Mulroney, on October 30, 2008. The couple have three children: identical twins, Brian Gerald Alexander Mulroney and John Benedict Dimitri Mulroney (born August 12, 2010), and daughter Isabel Veronica Mulroney, known as "Ivy" (born June 12, 2013). Mulroney is considered a close friend of Meghan, Duchess of Sussex (Meghan Markle). In 2018, she and her husband attended Markle's wedding to Prince Harry, and their children
Brian Mulroney PCs, led provincially by Robert Stanfield, swept to a surprise victory. Mulroney became a youth delegate and attended the 1956 leadership convention in Ottawa. While initially undecided, Mulroney was captivated by John Diefenbaker's powerful oratory and easy approachability. Mulroney joined the "Youth for Diefenbaker" committee which was led by Ted Rogers, a future scion of Canadian business. Mulroney struck an early friendship with Diefenbaker (who won the leadership) and received telephone calls from him. Mulroney won several public speaking contests at St. Francis Xavier University, was a star member of the school's debating team, and never lost an interuniversity debate.