The British government is facing a controversy surrounding the decision that Prince Harry and fiancée Meghan Markle will invite former President Barack Obama to their spring wedding ceremony but that President Trump won't make the invite list. Such a royal snub may ?trigger relations between the two 'Special Relationship' allies ?to waver ?even more.

"Harry has made it clear he wants the Obamas at the wedding, so it's causing a lot of nervousness," the Sun reported, citing a senior government official. "Trump could react very badly if the Obamas get to a ?royal wedding before he has had a chance to meet the Queen."

The relationship between Trump and British Prime Minister Theresa May has been a rocky one, with the leaders lashing out at each other throughout quite a few controversies.

Not too long ago, May chastised Trump, calling him "wrong" for retweeting anti-Muslim clips posted by a British Anti-Islamist group? in November?.

Prince Harry bonded with the Obamas? throughout the ?Invictus Games in September in Toronto, his bride-to-be referred to Trump during the 2016 presidential election  as "divisive" and "misogynistic."

The Sun reported that May, who?se? invitation to Trump to visit to England for a state visit was met with protests? and petitions in opposition to it?, might have the ultimate choice? on whether or not the president shall be on the guest list for the May 19 wedding ceremony?.

"Conversations are ongoing about and ministers will eventually have to decide. If the PM lays down the law, Harry will just have to suck it up,"? ?the British tabloid reported.