Tim Kaine's reason for joining Senate vote- to reduce hardship across the US, knowing the key actors and the chances of Republicans approving ACA subsidies were zero. Tim Kaine in his own words says why he joined in meeting with 2 New Hampshire Senators Shaheen and Hassan, and Angus King of Maine, to end the shutdown. He says he got Republicans to agree on support funding for food assistance and for veterans families and for workers in the federal government. Other reports show that over 300,000 workers in the federal government are from Tim Kaine's voter base in Virginia- he is a former governor of Virginia- all affected by job cuts and needing back pay, and he was doing what he though was right for them and for the Nation.