Are capital gains on 1099-DIV from U.S. obligations subject to Maryland income tax?

[HandyPop]

Well that doubles the confusion.

Doing my MD 502, TT explicitly asks about how much of all cap gains (showing the amount on the 1040) are from US govt instruments as TT will subtract them from Maryland income. TT fails to note that it also means to include "interest" gains on US govt instruments (as with Treasury bonds) which are treated the same way, exempt from MD income. 

Then there's your answer starting with "NO." Duh?