Why might the democratic and Whig parties have avoided the issue of slavery during the 1848 presidential election?

Much of its support came from anti-slavery Barnburner Democrats and Conscience Whigs, including former President Martin Van Buren.

answer; /// i believe that the correct answer is (gerrymander or gerrymandering)good luck

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.