No
Jackson is the furthest south by a fair margin. It's about 100 miles south of Columbia, SC.
Yes, Pennsylvania is significantly further north and further east than Mississippi.
The answer is north Carolina
Columbia
From Beijing, the capital of China, it is 7225 miles to Columbia, the capital of South Carolina. That's the shortest "great circle" route. It will be further if you have to plan a specific trip through airports and other cities. See related link
North Dakota is further north than North Carolina.
North Dakota is further north than North Carolina.
Kentucky is further east than Mississippi.
Duluth, Minnesota is further north than Mississippi.
The dominant state that most people would think of when asked this question would be the state of Texas. This is one of the largest states in the United States. Further states 'down south' would include Florida, Mississippi, Alabama, Carolina and many more.
Andrew Jackson's collection of tariffs from South Carolina was crucial in asserting federal authority over state actions during the Nullification Crisis. South Carolina had declared the tariffs null and void, challenging the federal government's power. By enforcing the tariff, Jackson aimed to preserve the Union and demonstrate that states could not unilaterally reject federal laws. This confrontation helped to reinforce the principle of federal supremacy and deterred further acts of defiance by other states.
Based on what? On northings NJ is further but NC is further on area.