Select the correct answer. What best explains the muckrakers' legislative successes during the Progressive Era?
A. strong government support
B. expanded freedom of the press
C. their ability to inspire public pressure
D. the expansion of voting rights

one of the main reasons was definitely slavery. back in 1861, republican abraham lincoln was elected and ended up being a major influence in the slavery business. slavery greatly affected the texas economy because back in 1845 during the annexation of texas, slaves became a big part of the texas population. many texans that were in favor of the secession influenced groups through party ties.

its a map of something

thomas jefferson is the answer