BEIRUT (AP) — Lebanon’s prime minister gave his partners in government a 72-hour ultimatum to come up with “convincing” solutions for a rapidly worsening economic crisis, as nationwide protests against the country’s entire ruling political class escalated. The blaze of protests was unleashed a day earlier when the government announced a slate of new proposed taxes, including a $6 monthly fee for using Whatsapp voice calls. The measures set a spark to long smoldering anger against top leaders from the president and prime minister to the numerous factional figures many blame for decades of corruption and mismanagement. Hundreds of rowdy protesters were massed outside Prime Minister Saad Hariri’s office as he delivered an address to the nation Friday evening, blaming politicians in his national unity government for blocking his reform agenda at every turn. The government is dominated by his rivals, the Iran-backed Hezbollah group and its allies.