Trump is already campaigning for reelection in 2020. Is that allowed?

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BBDnMnD.img?h=100&w=100&m=6&q=60&o=f&l=fTrump?s predecessors also took heat for commingling presidential and political duties when they began running for re-election

أكثر... (http://www.msn.com/en-ca/news/politics/trump-is-already-campaigning-for-reelection-in-2020-is-that-allowed/ar-BBDnCVC?srcref=rss)