The issue is whether it is moral for the government to force individuals to give up their substance for other people. Conservatives believe that this decision belongs to the individual who earned the money. Liberals believe this decision belongs to the government.
The scripture and doctrine teach that it is in the hands of the individual. The doctrine further stipulates the wrongness of forced charity. Liberals tend to refer to the Book of Mormon, King Benjamin and Mosiah to prove their point, but they selectively avoid the fact that the men of God in the Book of Mormon did not desire to set themselves up as a king or tyrant and burden the people with taxes preferring instead to set the example and work with their own hands.
It all culminates in the Law of Consecration in which we see that private property is the fundamental principle and "equality" does not mean everyone has equal wealth. We also see in that doctrine that the LAw of Consecration can't work under conditions of Socialism and requires FMC to work properly.
Hence it is seen here, as well as on topics of war and chastity and morality that a Democrat (or anything to the left of them) cannot possibly be a good Mormon and that such have to lie or feign ignorance in the TR interview.
"Do you support, affiliate with, or agree with any group or individual whose teachings or practices are contrary to or oppose those accepted by the Church of Jesus Christ of Latter-day Saints?"
Democrats are today, one of those groups.