Republicans have no idea what to say about Donald Trump Jr.’s meeting with a Russian lawyer

Why this defense isn’t a defense: It’s the most visual example that Republicans can’t defend what could be legally indefensible. If there was a clear explanation for Trump Jr. meeting with a Russian to get dirt on Clinton, they’d be giving it to reporters, not ducking them while the cameras and microphones are rolling.

Another attempt: Pivot to the media or the Obama administration. 
.. But Trump and Cruz are conflating two very different things. Obama was deciding how much to punish Russia for meddling; Trump Jr. appears to have admitted being open to working with the Russians to meddle.