Carwyn Jones told AMs on the Scrutiny of the First Minister Committee that there will inevitably be times when the UK and Welsh Governments disagree about how much power Welsh ministers have. But he said he hoped those occasions would be 'infrequent.'
He was asked by Liberal Democrat AM Eluned Parrott about a recent decision by the UK Attorney General to refer the Welsh Government's first bill to the Supreme Court.
More top news
Winds are expected to ease this evening and showers will become lighter and more isolated. A drier and brighter day tomorrow.
After nearly six weeks of campaigning the race for Number 10 has reached its final stages.
Polling stations across Wales will open at 7am on Thursday May 7th. Here is a guide on 'how to' and 'how not to' vote.