Boston Globe: Senator John McCain laid out a broad economic plan yesterday calling for more than $200 billion in new tax cuts for businesses and families, including a three-month "holiday" this summer from the 18.4-cent-per-gallon federal tax on gasoline. "The effect will be an immediate economic stimulus – taking a few dollars off the price of a tank of gas every time a family, a farmer, or trucker stops to fill up," the presumptive Republican presidential nominee said of …