"If anybody requests it, it won't be an issue," he said, adding that he'd dole out airtime to candidate such as Sen. Bernie SandersBernie SandersSanders on difference with Warren: she's a capitalist 'I'm not' Sunday Show Preview: Trump's allies and administration defend decision on Syria Klobuchar takes shots at health and education plans supported by Sanders and Warren MORE (I-Vt.) if they request it.