For drivers across the country, the tipping point is past: A record number of Americans say soaring gasoline prices are causing them serious financial hardship, and 55 percent have cut back on their driving as a result, up sharply in the past month. Seventy-seven percent in the latest ABC News/Washington Post poll call gas prices a financial hardship, and 51 percent say it's a "serious" hardship – up respectively by 14 and 17 points from a month ago to their highest in polls dating to 2000. ...Full Story