But, to make a long story short Republican governor Larry Hogan sent them in. https://www.msn.com/en-us/news/politics/gov-hogan-leaders-of...
As to why, this goes back to the constitution. Article I, Section 8, Clause 15, and Article I, Section 10, Clause 3 https://en.wikipedia.org/wiki/United_States_National_Guard
But, to make a long story short Republican governor Larry Hogan sent them in. https://www.msn.com/en-us/news/politics/gov-hogan-leaders-of...
As to why, this goes back to the constitution. Article I, Section 8, Clause 15, and Article I, Section 10, Clause 3 https://en.wikipedia.org/wiki/United_States_National_Guard