Roscosmos Head Casts Doubt On Deep Space Gateway Cooperation Written 24 September 2018

Reuters reported that Russia may abandon plans to help build the Deep Space Gateway with NASA because Moscow, according to Roscosmos head Dmitry Rogozin, does not want to play a “second fiddle role.” Russia had agreed last year to partner with the US on plans for the space station, but speaking to Russian television, Rogozin “said Russia might exit the joint program and instead propose its own lunar orbit space station project.” Roscosmos spokesman Vladimir Ustimenko later countered, however, that “Russia has not refused to take part in the project of the lunar orbit station with the USA.” 
More Info (Reuters)