so let's recap what these ID laws do in various states, since you are unwilling to do the research yourself:

-- eliminate early voting, especially on Sundays: Black churches typically rent vans and buses and bring their congregations to the early voting polls on Sundays. other churches and similar religious groups do not. therefore, restricting early voting to non-Sundays limits the ability of Black churches to participate. yes, the alternative is to try to get people together to vote on any of the other early days, but some states like Ohio and North Carolina have eliminated all but one weekend of early voting.

-- restrict the types of ID which are valid: in Texas, your concealed carry permit is a valid ID for voting, but your student photo ID is not, even if it was issued by a TX school. not only that, but if you don't have the correct ID when you vote, you are limited to a three day window to return to the county clerk office to prove you had the correct ID on election day, otherwise your vote doesn't count.

-- restrict the ways you can get a valid ID: in Wisconsin, you have to provide an official copy of your birth certificate and Social Security card to be issued a new ID. if you don't live in Milwaukee or Madison, your DMV options are open only once per week for a maximum of four hours.

in Texas, some married women are required to put their maiden name as their middle name on their driver's license. when they bring their ID to vote, if their name does not match the voter list because of this, they are not allowed to vote.

All of this is beside the point the real takeaway from all of these restrictions on voting is that republicans know they can't win on their ideas because they don't have any. their only chance to keep winning is to prevent people who might vote democrat from being able to vote in any election. but don't take my word for it, listen to your own people say why these laws are worth pursuing:

“If it hurts a bunch of lazy blacks… so be it,” Yelton said. “The law is going to kick the Democrats in the butt.” -- Don Yelton, republican activist http://www.usatoday.com/story/news/politics/2013/10/24/north-carolina-yelton-resigns/3184993/

"Voter ID, which is gonna allow Governor Romney to win the state of Pennsylvania, done,” [Mike] Turzai said to a republican state committee meeting http://www.politico.com/news/stories/0612/77811.html

Franklin County (Columbus) GOP Chair Doug Preisse: “I guess I really actually feel we shouldn’t contort the voting process to accommodate the urban—read African-American—voter-turnout machine.” http://www.dispatch.com/content/stories/local/2012/08/19/fight-over-poll-hours-isnt-just-political.html

"There is only one motivation for imposing burdens on voting that are ostensibly designed to discourage voter-impersonation fraud, and that is to discourage voting by persons likely to vote against the party responsible for imposing the burdens." Judge Richard Posner http://bradblog.com/Docs/JudgePosnerDissent_PhotoID_WI_101014.pdf