It's Michigan you dorks!! think a little here, there's only one state that is divided into 2!
Michigan.
Rhode Island
what state makes up most of arkansas' southern border
most likely just another state but especially if it is not called an international border
Missouri and Tennessee border eight states, the most of any.
what state makes up most of Arkansas' southern border
Alabama
Oklahoma shares most of Texas's northern border.
Tennessee.
Oklahoma
kentucky
Delaware (perhaps the most overlooked border state), Kentucky, Maryland and Missouri were the border states that did not secede from the Union.
Washington State's northern border with Canada is a straight line from Blaine WA to its eastern border with Idaho. That northern border line is the most northern point.