The Labour Party are allowing each of the 5 candidates in their leadership election to send an email to the Labour Party database. 3 of the candidates have taken advantage or the opportunity so far and above is the creative they’ve opted for in the header.
The power of email, arguably over an other digital channel, as political communication tool is well documented. So, one can safely assume that the candidates would have spent considerable time and effort getting their message honed for the occasion.
politicaladvertising.co.uk 
Why on earth is David underlining “Milliband” and “Power”.
Labour’s performance in Power is a bit of a negative. And the fact that two Millibands are going up against each other is definitely a bad thing. Seems ridiculous to me.