For Christine Todd Whitman, it was a matter of frustration. After more than a year of discussions over what she and others see as the country’s dysfunctional two-party system — and the rancid politics of her own party — the former Republican New Jersey governor joined publicly this week with one-time Democratic presidential candidate Andrew Yang and former Republican Rep. David Jolly of Florida to announce the creation of a new party. It will be called Forward. “It seemed the time was right,” she said in a phone interview Thursday from Washington State. The party, co-chaired by Whitman and Yan…