With the JD(U)'s decision to back NDA's presidential nominee Ram Nath Kovind under intense scrutiny, spokesperson K C Tyagi also referred to his party's "natural" relations with the BJP when it was part of the National Democratic Alliance.
He, however, insisted that there was no question of joining the saffron alliance.
Tyagi took strong exception to Congress leader Ghulam Nabi Azad's comments on the Bihar chief minister for his support to Kovind.
"Our support to Kovind is an isolated incident. Why are some people bent on making it permanent with such comments and shortening the life of our grand alliance?
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To a question about the growing speculation about the JD (U) coming closer to the BJP, its ally for 17 years before they split in 2013, Tyagi said the ideological differences that caused their separation remain.
He asked the RJD and Congress, his party's two allies in the Bihar government, to look beyond the July 17 presidential poll.
Kumar's surprise support to Kovind led to flak from the the RJD and the Congress. An aggressive Bihar chief minister, in turn, hit out at them over projecting Meira Kumar as the opposition's presidential pick.
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