joining us is john sudworth. give us more on what we can expect tonight. this is the eighth in this extraordinary series of hearings, all attempting to prove that in prosecuting the claim that the election was stolen, president trump engaged in an illegal attempt to subvert democracy, including the violent attack. we know so far the committee has been prosecuting its case on a number of grounds. number one, he knew it was wrong. many of these close aides told him he had lost the election and there was no real evidence for his claims, and they have attempted to show that he had intent, that extraordinary moment when one of his aides details the attempt he made to grab the steering wel of the limo, demanding he be taken down to the capitol to join in the violence. tonight, we will get something broadly described as "dereliction of duty. this hearing will focus on the 100 86 minutes looking at what president trump did or did not do while the violence unfolded and his seeming refusal to call off the mob or protect his vice president who was there at the heart o

john sudworth, thank you very much. will allow ukraine to resume exports of grain through the black sea. it's expected to be signed on friday in istanbul by ukraine, russia, turkey and the un secretary general. under the deal, russia would agree to a truce in ukraine while shipments move subject to weapon inspections by turkey. russia and ukraine are major global wheat suppliers and the war has stoked an internationalfood crisis. russia has resumed pumping gas to europe through its biggest pipeline after warnings it could curb or halt supplies altogether. president putin has used gas to put pressure on other countries over their support for ukraine. as a result, the german government has sped up efforts to find alternative sources of energy in case russia closes the tap for good. jenny hill reports from duisburg. germany thought this was the fuel of the past. now coal is keeping the country afloat. as russia restricts its gas, germany is seeking other sources of energy and that includes firing up old coal power stations