One other noteworthy aspect of the court's action Tuesday was the silence of liberal Justices Stephen Breyer and Elena Kagan, who vote regularly to uphold abortion rights. By not joining their liberal colleagues in dissent, Breyer and Kagan helped Roberts in his desire to avoid, where possible, controversial outcomes that split the five conservatives and four liberals. The two also may have preserved their ability to negotiate with, if not influence, Roberts in other cases.