News Minute: Here is the latest South Dakota news from The Associated Press at 5:40 a.m. CST

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MINNEAPOLIS (AP) - Heavy snow and strong winds are pushing through the Midwest, closing highways in Kansas and South Dakota and snarling flights in Denver and Minneapolis. Dozens of school districts in Minnesota have canceled classes. National Weather Service meteorologist Bill Borghoff in Chanhassen, Minnesota, says the storm started brewing Saturday night over Nebraska and spread to Michigan's Upper Peninsula. Transportation officials advised against traveling in southwest Minnesota due to whiteout conditions.

SIOUX FALLS, S.D. (AP) - South Dakota transportation and public safety officials are closing north and southbound lanes of Interstate 29 from around Sioux Falls south to the Iowa border because heavy snow and strong winds are making travel nearly impossible. The Department of Transportation says numerous vehicles, including jackknifed semis, are stuck along the interstate, which is closed from Tea south to Iowa.

PIERRE, S.D. (AP) - A South Dakota Senate panel has approved a measure that would ask voters to make it harder to change the state constitution. The Senate State Affairs Committee voted 6-2 Monday to advance the proposal. It would put a constitutional amendment before voters this year that would increase the majority vote threshold required for a constitutional change to at least 55 percent of the votes cast on an amendment.

PIERRE, S.D. (AP) - The campaign for a constitutional amendment that would move South Dakota to an open primary system for many political races raised more than $205,000 in 2017. Open Primaries South Dakota reported in January that it ended the year with roughly $1,000 on hand. Nearly all the campaign's spending went to "Marketing."

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