NAIROBI, Kenya (AP) — Kenyans are preparing for tough times after lawmakers approved tax increases that are even unpopular with supporters of the president who once vowed to reduce the cost of living. The doubling of the tax on petroleum products, from 8% to 16%, is expected to have a ripple effect on East Africa's economic hub, with the prices of goods and services expected to increase. The administration of President William Ruto, who was elected last year, has only made things harder, one supporter said.