According to GasBuddy, the national average is now above $4 a gallon for the first time in three years, marking the largest monthly increase on record amid the war in Iran. ––– Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G ABC News is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. https://abcnews.com Download the ABC News app for the latest headlines and alerts: https://abcnews.com/devices Connect with ABC