Putin responds to US-Ukraine ceasefire proposal, says he’s ’for it’ but has concerns

President Vladimir Putin raised questions regarding a 30-day ceasefire during a press briefing in Moscow on Thursday. ABC News’ Marcus Moore reports. ––– Subscribe to ABC News on YouTube: ABC News is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. Download the ABC News app for the latest headlines and alerts: Watch 24/7 coverage of breaking news and live events on ABC News Live: Watch full episodes of World News Tonight with David Muir here: Read ABC News reports online: ABC News is the home to the #1 evening newscast “World News Tonight with David Muir,“ “Good Morning America,” “20/20,” “Nightline,” “This Week” with George Stephanopoulos, “AB