Do voter ID laws help or hurt voter turnout?

“Look, in Kansas, for example, we put our photo ID law in place in 2012. So, if you want to test the effect on participation, you look at the 2010 election and the 2014, which we did. In the rest of the country, participation dropped severely between 2010 and 2014.
Source: Do voter ID laws help or hurt voter turnout?